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128902693482 = 232232291359647
BaseRepresentation
bin111100000001100110…
…0110000001001101010
3110022201110011022001200
41320003030300021222
54102443042142412
6135114520025030
712212220546663
oct1700314601152
9408643138050
10128902693482
114a738234542
1220b95302176
13c203757b34
14634b86c36a
1535468609dc
hex1e0333026a

128902693482 has 48 divisors (see below), whose sum is σ = 292705021440. Its totient is φ = 40919906016.

The previous prime is 128902693411. The next prime is 128902693487. The reversal of 128902693482 is 284396209821.

128902693482 is a `hidden beast` number, since 12 + 8 + 90 + 2 + 69 + 3 + 482 = 666.

It is not an unprimeable number, because it can be changed into a prime (128902693487) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 585018 + ... + 774629.

It is an arithmetic number, because the mean of its divisors is an integer number (6098021280).

Almost surely, 2128902693482 is an apocalyptic number.

128902693482 is an abundant number, since it is smaller than the sum of its proper divisors (163802327958).

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

128902693482 is a wasteful number, since it uses less digits than its factorization.

128902693482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359907 (or 1359904 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The spelling of 128902693482 in words is "one hundred twenty-eight billion, nine hundred two million, six hundred ninety-three thousand, four hundred eighty-two".

Divisors: 1 2 3 6 9 18 23 46 69 138 207 229 414 458 687 1374 2061 4122 5267 10534 15801 31602 47403 94806 1359647 2719294 4078941 8157882 12236823 24473646 31271881 62543762 93815643 187631286 281446929 311359163 562893858 622718326 934077489 1868154978 2802232467 5604464934 7161260749 14322521498 21483782247 42967564494 64451346741 128902693482