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102860028 = 22322857223
BaseRepresentation
bin1100010000110…
…00010011111100
321011112211102200
412020120103330
5202313010103
614112351500
72356203315
oct610302374
9234484380
10102860028
1153075297
122a545590
131840552b
14d93760c
15906c0a3
hex62184fc

102860028 has 18 divisors (see below), whose sum is σ = 260007384. Its totient is φ = 34286664.

The previous prime is 102860027. The next prime is 102860033. The reversal of 102860028 is 820068201.

102860028 is a `hidden beast` number, since 10 + 28 + 600 + 28 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 102859983 and 102860010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102860027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1428576 + ... + 1428647.

Almost surely, 2102860028 is an apocalyptic number.

102860028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

102860028 is an abundant number, since it is smaller than the sum of its proper divisors (157147356).

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

102860028 is a wasteful number, since it uses less digits than its factorization.

102860028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2857233 (or 2857228 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 102860028 is about 10141.9932952058. The cubic root of 102860028 is about 468.5423801608.

The spelling of 102860028 in words is "one hundred two million, eight hundred sixty thousand, twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 2857223 5714446 8571669 11428892 17143338 25715007 34286676 51430014 102860028