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103011512 = 2331213399
BaseRepresentation
bin1100010001111…
…01010010111000
321011211112020012
412020331102320
5202332332022
614115521052
72360404052
oct610752270
9234745205
10103011512
115316908a
122a5b9188
1318459476
14d9768d2
15909bde2
hex623d4b8

103011512 has 24 divisors (see below), whose sum is σ = 199593000. Its totient is φ = 49840560.

The previous prime is 103011487. The next prime is 103011523. The reversal of 103011512 is 215110301.

It is a super-2 number, since 2×1030115122 = 21222743209052288, 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 5 ways as a sum of consecutive naturals, for example, 989 + ... + 14387.

It is an arithmetic number, because the mean of its divisors is an integer number (8316375).

Almost surely, 2103011512 is an apocalyptic number.

It is an amenable number.

103011512 is a deficient number, since it is larger than the sum of its proper divisors (96581488).

103011512 is a wasteful number, since it uses less digits than its factorization.

103011512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13467 (or 13432 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 103011512 is about 10149.4587047783. The cubic root of 103011512 is about 468.7722778864.

Adding to 103011512 its reverse (215110301), we get a palindrome (318121813).

The spelling of 103011512 in words is "one hundred three million, eleven thousand, five hundred twelve".

Divisors: 1 2 4 8 31 62 124 248 961 1922 3844 7688 13399 26798 53596 107192 415369 830738 1661476 3322952 12876439 25752878 51505756 103011512