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102513408 = 283133481
BaseRepresentation
bin1100001110000…
…11101100000000
321010220012221220
412013003230000
5202220412113
614101115040
72353230624
oct607035400
9233805856
10102513408
1152958928
122a3b8a80
131831382a
14d887184
158eee523
hex61c3b00

102513408 has 36 divisors (see below), whose sum is σ = 272837208. Its totient is φ = 34170880.

The previous prime is 102513403. The next prime is 102513409. The reversal of 102513408 is 804315201.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (102513403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65973 + ... + 67508.

Almost surely, 2102513408 is an apocalyptic number.

It is an amenable number.

102513408 is an abundant number, since it is smaller than the sum of its proper divisors (170323800).

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

102513408 is an equidigital number, since it uses as much as digits as its factorization.

102513408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133500 (or 133486 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 102513408 is about 10124.8905179266. The cubic root of 102513408 is about 468.0154863748.

Adding to 102513408 its reverse (804315201), we get a palindrome (906828609).

The spelling of 102513408 in words is "one hundred two million, five hundred thirteen thousand, four hundred eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 128 192 256 384 768 133481 266962 400443 533924 800886 1067848 1601772 2135696 3203544 4271392 6407088 8542784 12814176 17085568 25628352 34171136 51256704 102513408