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28077010230 = 2355317658497
BaseRepresentation
bin11010001001100001…
…010010110100110110
32200110201211220022210
4122021201102310312
5430000203311410
620522015434250
72012526435453
oct321141226466
980421756283
1028077010230
11109a8816395
125536b25986
132855b72329
141504cb882a
15ae4dc9220
hex689852d36

28077010230 has 32 divisors (see below), whose sum is σ = 68656240224. Its totient is φ = 7345934336.

The previous prime is 28077010193. The next prime is 28077010231. The reversal of 28077010230 is 3201077082.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28077010231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8827659 + ... + 8830838.

It is an arithmetic number, because the mean of its divisors is an integer number (2145507507).

Almost surely, 228077010230 is an apocalyptic number.

28077010230 is an abundant number, since it is smaller than the sum of its proper divisors (40579229994).

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

28077010230 is a wasteful number, since it uses less digits than its factorization.

28077010230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17658560.

The product of its (nonzero) digits is 4704, while the sum is 30.

The spelling of 28077010230 in words is "twenty-eight billion, seventy-seven million, ten thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 53 106 159 265 318 530 795 1590 17658497 35316994 52975491 88292485 105950982 176584970 264877455 529754910 935900341 1871800682 2807701023 4679501705 5615402046 9359003410 14038505115 28077010230