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28175061712 = 2472099119849
BaseRepresentation
bin11010001111010111…
…010101001011010000
32200201120100102200011
4122033113111023100
5430200303433322
620535441204304
72015130034030
oct321727251320
980646312604
1028175061712
1110a490a6976
125563930694
132870282c65
141513d1d8c0
15aed7e6677
hex68f5d52d0

28175061712 has 40 divisors (see below), whose sum is σ = 62417880000. Its totient is φ = 12069172992.

The previous prime is 28175061697. The next prime is 28175061727. The reversal of 28175061712 is 21716057182.

It is an interprime number because it is at equal distance from previous prime (28175061697) and next prime (28175061727).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175164 + ... + 295012.

It is an arithmetic number, because the mean of its divisors is an integer number (1560447000).

Almost surely, 228175061712 is an apocalyptic number.

It is an amenable number.

28175061712 is an abundant number, since it is smaller than the sum of its proper divisors (34242818288).

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

28175061712 is a wasteful number, since it uses less digits than its factorization.

28175061712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121963 (or 121957 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 40.

The spelling of 28175061712 in words is "twenty-eight billion, one hundred seventy-five million, sixty-one thousand, seven hundred twelve".

Divisors: 1 2 4 7 8 14 16 28 56 112 2099 4198 8396 14693 16792 29386 33584 58772 117544 119849 235088 239698 479396 838943 958792 1677886 1917584 3355772 6711544 13423088 251563051 503126102 1006252204 1760941357 2012504408 3521882714 4025008816 7043765428 14087530856 28175061712