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1248480120 = 233519599281
BaseRepresentation
bin100101001101010…
…0100101101111000
310020000020100202110
41022122210231320
510024102330440
6323515132320
742636622506
oct11232445570
93200210673
101248480120
11590809658
122aa1440a0
1316b869b44
14bbb4d676
1574915080
hex4a6a4b78

1248480120 has 128 divisors (see below), whose sum is σ = 4009824000. Its totient is φ = 310026240.

The previous prime is 1248480109. The next prime is 1248480127. The reversal of 1248480120 is 210848421.

It is a super-2 number, since 2×12484801202 = 3117405220070428800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1248480127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129880 + ... + 139160.

It is an arithmetic number, because the mean of its divisors is an integer number (31326750).

Almost surely, 21248480120 is an apocalyptic number.

1248480120 is a gapful number since it is divisible by the number (10) 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 1248480120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2004912000).

1248480120 is an abundant number, since it is smaller than the sum of its proper divisors (2761343880).

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

1248480120 is a wasteful number, since it uses less digits than its factorization.

1248480120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9373 (or 9369 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 30.

The square root of 1248480120 is about 35333.8381724941. The cubic root of 1248480120 is about 1076.7805703165.

It can be divided in two parts, 1248480 and 120, that multiplied together give a square (149817600 = 122402).

The spelling of 1248480120 in words is "one billion, two hundred forty-eight million, four hundred eighty thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 19 20 24 30 38 40 57 59 60 76 95 114 118 120 152 177 190 228 236 285 295 354 380 456 472 570 590 708 760 885 1121 1140 1180 1416 1770 2242 2280 2360 3363 3540 4484 5605 6726 7080 8968 9281 11210 13452 16815 18562 22420 26904 27843 33630 37124 44840 46405 55686 67260 74248 92810 111372 134520 139215 176339 185620 222744 278430 352678 371240 529017 547579 556860 705356 881695 1058034 1095158 1113720 1410712 1642737 1763390 2116068 2190316 2645085 2737895 3285474 3526780 4232136 4380632 5290170 5475790 6570948 7053560 8213685 10404001 10580340 10951580 13141896 16427370 20808002 21160680 21903160 31212003 32854740 41616004 52020005 62424006 65709480 83232008 104040010 124848012 156060015 208080020 249696024 312120030 416160040 624240060 1248480120