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1428070512 = 2431161101439
BaseRepresentation
bin101010100011110…
…1010000001110000
310200112011111110110
41111013222001300
510411041224022
6353412301320
750250253611
oct12507520160
93615144413
101428070512
11673121570
1233a311840
13199b2944b
14d793bc08
158558c00c
hex551ea070

1428070512 has 160 divisors (see below), whose sum is σ = 4140449280. Its totient is φ = 420480000.

The previous prime is 1428070507. The next prime is 1428070561. The reversal of 1428070512 is 2150708241.

It is a self number, because there is not a number n which added to its sum of digits gives 1428070512.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3252789 + ... + 3253227.

It is an arithmetic number, because the mean of its divisors is an integer number (25877808).

Almost surely, 21428070512 is an apocalyptic number.

1428070512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1428070512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2070224640).

1428070512 is an abundant number, since it is smaller than the sum of its proper divisors (2712378768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1428070512 is a wasteful number, since it uses less digits than its factorization.

1428070512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623 (or 617 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 1428070512 is about 37789.8202165610. The cubic root of 1428070512 is about 1126.1162286019.

Adding to 1428070512 its reverse (2150708241), we get a palindrome (3578778753).

The spelling of 1428070512 in words is "one billion, four hundred twenty-eight million, seventy thousand, five hundred twelve".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 33 44 48 61 66 88 101 122 132 176 183 202 244 264 303 366 404 439 488 528 606 671 732 808 878 976 1111 1212 1317 1342 1464 1616 1756 2013 2222 2424 2634 2684 2928 3333 3512 4026 4444 4829 4848 5268 5368 6161 6666 7024 8052 8888 9658 10536 10736 12322 13332 14487 16104 17776 18483 19316 21072 24644 26664 26779 28974 32208 36966 38632 44339 49288 53328 53558 57948 67771 73932 77264 80337 88678 98576 107116 115896 133017 135542 147864 160674 177356 203313 214232 231792 266034 271084 294569 295728 321348 354712 406626 428464 487729 532068 542168 589138 642696 709424 813252 883707 975458 1064136 1084336 1178276 1285392 1463187 1626504 1767414 1950916 2128272 2356552 2704679 2926374 3253008 3534828 3901832 4713104 5409358 5852748 7069656 7803664 8114037 10818716 11705496 14139312 16228074 21637432 23410992 29751469 32456148 43274864 59502938 64912296 89254407 119005876 129824592 178508814 238011752 357017628 476023504 714035256 1428070512