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1421002230 = 235477912757
BaseRepresentation
bin101010010110010…
…1100010111110110
310200000212101121020
41110230230113312
510402234032410
6353001002010
750133214434
oct12454542766
93600771536
101421002230
1166a13400a
12337a83306
1319852312b
14d6a1bd54
1584b42a70
hex54b2c5f6

1421002230 has 64 divisors (see below), whose sum is σ = 3527331840. Its totient is φ = 366148224.

The previous prime is 1421002201. The next prime is 1421002237. The reversal of 1421002230 is 322001241.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421002237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105012 + ... + 117768.

It is an arithmetic number, because the mean of its divisors is an integer number (55114560).

Almost surely, 21421002230 is an apocalyptic number.

1421002230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1421002230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1763665920).

1421002230 is an abundant number, since it is smaller than the sum of its proper divisors (2106329610).

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

1421002230 is a wasteful number, since it uses less digits than its factorization.

1421002230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12893.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1421002230 is about 37696.1832285445. The cubic root of 1421002230 is about 1124.2552384270.

Adding to 1421002230 its reverse (322001241), we get a palindrome (1743003471).

The spelling of 1421002230 in words is "one billion, four hundred twenty-one million, two thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 47 79 94 141 158 235 237 282 395 470 474 705 790 1185 1410 2370 3713 7426 11139 12757 18565 22278 25514 37130 38271 55695 63785 76542 111390 127570 191355 382710 599579 1007803 1199158 1798737 2015606 2997895 3023409 3597474 5039015 5995790 6046818 8993685 10078030 15117045 17987370 30234090 47366741 94733482 142100223 236833705 284200446 473667410 710501115 1421002230