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28875888902 = 273788954437
BaseRepresentation
bin11010111001001000…
…110001100100000110
32202112102002010211202
4122321020301210012
5433114211421102
621133154302502
72041400002010
oct327110614406
982472063752
1028875888902
11112787607a3
12571a587a32
1329525219c3
14157d0311b0
15b400cde02
hex6b9231906

28875888902 has 16 divisors (see below), whose sum is σ = 49503739680. Its totient is φ = 12374827008.

The previous prime is 28875888851. The next prime is 28875888907. The reversal of 28875888902 is 20988857882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28875888907) 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, 503228 + ... + 557664.

It is an arithmetic number, because the mean of its divisors is an integer number (3093983730).

Almost surely, 228875888902 is an apocalyptic number.

28875888902 is a deficient number, since it is larger than the sum of its proper divisors (20627850778).

28875888902 is a wasteful number, since it uses less digits than its factorization.

28875888902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92335.

The product of its (nonzero) digits is 41287680, while the sum is 65.

The spelling of 28875888902 in words is "twenty-eight billion, eight hundred seventy-five million, eight hundred eighty-eight thousand, nine hundred two".

Divisors: 1 2 7 14 37889 54437 75778 108874 265223 381059 530446 762118 2062563493 4125126986 14437944451 28875888902