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102744964 = 227374887
BaseRepresentation
bin1100001111111…
…00001110000100
321011022222121001
412013330032010
5202300314324
614110103044
72355214000
oct607741604
9234288531
10102744964
1152aa68a3
122a4aaa84
131839504a
14d907700
159047e44
hex61fc384

102744964 has 24 divisors (see below), whose sum is σ = 209686400. Its totient is φ = 44032968.

The previous prime is 102744907. The next prime is 102745007. The reversal of 102744964 is 469447201.

It is a happy number.

It is a super-2 number, since 2×1027449642 = 21113055254722592, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36072 + ... + 38815.

Almost surely, 2102744964 is an apocalyptic number.

102744964 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

102744964 is an abundant number, since it is smaller than the sum of its proper divisors (106941436).

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

102744964 is an equidigital number, since it uses as much as digits as its factorization.

102744964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74912 (or 74896 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 102744964 is about 10136.3190557519. The cubic root of 102744964 is about 468.3676038914.

The spelling of 102744964 in words is "one hundred two million, seven hundred forty-four thousand, nine hundred sixty-four".

Divisors: 1 2 4 7 14 28 49 98 196 343 686 1372 74887 149774 299548 524209 1048418 2096836 3669463 7338926 14677852 25686241 51372482 102744964