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102928401 = 3431179229
BaseRepresentation
bin1100010001010…
…01000000010001
321011200022020000
412020221000101
5202322202101
614114040213
72356606542
oct610510021
9234608200
10102928401
11531116a4
122a579069
131842a6a4
14d9544c9
159082486
hex6229011

102928401 has 40 divisors (see below), whose sum is σ = 160300800. Its totient is φ = 65746080.

The previous prime is 102928351. The next prime is 102928429. The reversal of 102928401 is 104829201.

It is not a de Polignac number, because 102928401 - 215 = 102895633 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (102928451) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 449355 + ... + 449583.

It is an arithmetic number, because the mean of its divisors is an integer number (4007520).

Almost surely, 2102928401 is an apocalyptic number.

It is an amenable number.

102928401 is a deficient number, since it is larger than the sum of its proper divisors (57372399).

102928401 is a wasteful number, since it uses less digits than its factorization.

102928401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451 (or 442 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 102928401 is about 10145.3635223190. The cubic root of 102928401 is about 468.6461734845.

The spelling of 102928401 in words is "one hundred two million, nine hundred twenty-eight thousand, four hundred one".

Divisors: 1 3 9 27 31 81 93 179 229 279 537 687 837 1611 2061 2511 4833 5549 6183 7099 14499 16647 18549 21297 40991 49941 63891 122973 149823 191673 368919 449469 575019 1106757 1270721 3320271 3812163 11436489 34309467 102928401