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628811907130 = 251113941125697
BaseRepresentation
bin10010010011010000001…
…11000100000000111010
32020010001222112120211201
421021220013010000322
540300301322012010
61200512221244414
763300355010161
oct11115007040072
92203058476751
10628811907130
1122274aa238a0
12a1a4ba0370a
13473b1b39a74
14226129bc3d8
151155450e23a
hex92681c403a

628811907130 has 32 divisors (see below), whose sum is σ = 1243641107520. Its totient is φ = 227013841920.

The previous prime is 628811907107. The next prime is 628811907169. The reversal of 628811907130 is 31709118826.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20547559 + ... + 20578138.

It is an arithmetic number, because the mean of its divisors is an integer number (38863784610).

Almost surely, 2628811907130 is an apocalyptic number.

628811907130 is a deficient number, since it is larger than the sum of its proper divisors (614829200390).

628811907130 is a wasteful number, since it uses less digits than its factorization.

628811907130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41125854.

The product of its (nonzero) digits is 145152, while the sum is 46.

The spelling of 628811907130 in words is "six hundred twenty-eight billion, eight hundred eleven million, nine hundred seven thousand, one hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 139 278 695 1390 1529 3058 7645 15290 41125697 82251394 205628485 411256970 452382667 904765334 2261913335 4523826670 5716471883 11432943766 28582359415 57164718830 62881190713 125762381426 314405953565 628811907130