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28058628160 = 265127690419
BaseRepresentation
bin11010001000011011…
…001011000001000000
32200102110020222212101
4122020123023001000
5424431002100120
620520121440144
72012214255433
oct321033130100
980373228771
1028058628160
11109994006a2
125530940054
132852107474
14150269181a
15ae349790a
hex6886cb040

28058628160 has 56 divisors (see below), whose sum is σ = 67340805120. Its totient is φ = 11135061504.

The previous prime is 28058628139. The next prime is 28058628167. The reversal of 28058628160 is 6182685082.

It is a super-2 number, since 2×280586281602 (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 28058628160.

It is not an unprimeable number, because it can be changed into a prime (28058628167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304570 + ... + 385849.

Almost surely, 228058628160 is an apocalyptic number.

28058628160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28058628160 is an abundant number, since it is smaller than the sum of its proper divisors (39282176960).

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

28058628160 is a wasteful number, since it uses less digits than its factorization.

28058628160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690563 (or 690553 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 46.

The spelling of 28058628160 in words is "twenty-eight billion, fifty-eight million, six hundred twenty-eight thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 127 160 254 320 508 635 1016 1270 2032 2540 4064 5080 8128 10160 20320 40640 690419 1380838 2761676 3452095 5523352 6904190 11046704 13808380 22093408 27616760 44186816 55233520 87683213 110467040 175366426 220934080 350732852 438416065 701465704 876832130 1402931408 1753664260 2805862816 3507328520 5611725632 7014657040 14029314080 28058628160