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102587472 = 2434136089
BaseRepresentation
bin1100001110101…
…01110001010000
321011000222120000
412013111301100
5202230244342
614102450000
72353656561
oct607256120
9234028500
10102587472
11529a9539
122a433900
131833b460
14d8a6168
15901644c
hex61d5c50

102587472 has 100 divisors (see below), whose sum is σ = 319810260. Its totient is φ = 31560192.

The previous prime is 102587467. The next prime is 102587477. The reversal of 102587472 is 274785201.

102587472 is a `hidden beast` number, since 1 + 0 + 2 + 587 + 4 + 72 = 666.

It is an interprime number because it is at equal distance from previous prime (102587467) and next prime (102587477).

It can be written as a sum of positive squares in 2 ways, for example, as 18974736 + 83612736 = 4356^2 + 9144^2 .

It is a super-2 number, since 2×1025874722 = 21048378822701568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102587477) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13804 + ... + 19892.

Almost surely, 2102587472 is an apocalyptic number.

102587472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102587472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159905130).

102587472 is an abundant number, since it is smaller than the sum of its proper divisors (217222788).

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

102587472 is a wasteful number, since it uses less digits than its factorization.

102587472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6122 (or 6107 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 102587472 is about 10128.5473785731. The cubic root of 102587472 is about 468.1281700234.

The spelling of 102587472 in words is "one hundred two million, five hundred eighty-seven thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 13 16 18 24 26 27 36 39 48 52 54 72 78 81 104 108 117 144 156 162 208 216 234 312 324 351 432 468 624 648 702 936 1053 1296 1404 1872 2106 2808 4212 5616 6089 8424 12178 16848 18267 24356 36534 48712 54801 73068 79157 97424 109602 146136 158314 164403 219204 237471 292272 316628 328806 438408 474942 493209 633256 657612 712413 876816 949884 986418 1266512 1315224 1424826 1899768 1972836 2137239 2630448 2849652 3799536 3945672 4274478 5699304 6411717 7891344 8548956 11398608 12823434 17097912 25646868 34195824 51293736 102587472