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103407912 = 23321436221
BaseRepresentation
bin1100010100111…
…10000100101000
321012120122222200
412022132010220
5202433023122
614132220200
72363644536
oct612360450
9235518880
10103407912
1153409993
122a76a660
1318567a1a
14da3b156
1591295ac
hex629e128

103407912 has 24 divisors (see below), whose sum is σ = 280063290. Its totient is φ = 34469280.

The previous prime is 103407911. The next prime is 103407961. The reversal of 103407912 is 219704301.

It can be written as a sum of positive squares in only one way, i.e., 64545156 + 38862756 = 8034^2 + 6234^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (103407911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 718039 + ... + 718182.

Almost surely, 2103407912 is an apocalyptic number.

103407912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

103407912 is an abundant number, since it is smaller than the sum of its proper divisors (176655378).

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

103407912 is a wasteful number, since it uses less digits than its factorization.

103407912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1436233 (or 1436226 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 103407912 is about 10168.9680892409. The cubic root of 103407912 is about 469.3728045710.

The spelling of 103407912 in words is "one hundred three million, four hundred seven thousand, nine hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 1436221 2872442 4308663 5744884 8617326 11489768 12925989 17234652 25851978 34469304 51703956 103407912