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102919380 = 22353155333
BaseRepresentation
bin1100010001001…
…10110011010100
321011122211211220
412020212303110
5202321410010
614113530340
72356541334
oct610466324
9234584756
10102919380
1153105943
122a5739b0
1318426555
14d9510c4
15907e970
hex6226cd4

102919380 has 48 divisors (see below), whose sum is σ = 297475584. Its totient is φ = 26559360.

The previous prime is 102919379. The next prime is 102919391. The reversal of 102919380 is 83919201.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25807 + ... + 29526.

It is an arithmetic number, because the mean of its divisors is an integer number (6197408).

Almost surely, 2102919380 is an apocalyptic number.

102919380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102919380 is an abundant number, since it is smaller than the sum of its proper divisors (194556204).

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

102919380 is a wasteful number, since it uses less digits than its factorization.

102919380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55376 (or 55374 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 102919380 is about 10144.9189252551. The cubic root of 102919380 is about 468.6324818289.

The spelling of 102919380 in words is "one hundred two million, nine hundred nineteen thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 31 60 62 93 124 155 186 310 372 465 620 930 1860 55333 110666 165999 221332 276665 331998 553330 663996 829995 1106660 1659990 1715323 3319980 3430646 5145969 6861292 8576615 10291938 17153230 20583876 25729845 34306460 51459690 102919380