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103807972 = 2225951993
BaseRepresentation
bin1100010111111…
…11101111100100
321020022222202201
412023333233210
5203033323342
614144544244
72400232102
oct613775744
9236288681
10103807972
1153662514
122a922084
1318677b48
14db02c72
1591a7db7
hex62ffbe4

103807972 has 6 divisors (see below), whose sum is σ = 181663958. Its totient is φ = 51903984.

The previous prime is 103807969. The next prime is 103807981. The reversal of 103807972 is 279708301.

It can be written as a sum of positive squares in only one way, i.e., 95374756 + 8433216 = 9766^2 + 2904^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12975993 + ... + 12976000.

Almost surely, 2103807972 is an apocalyptic number.

It is an amenable number.

103807972 is a deficient number, since it is larger than the sum of its proper divisors (77855986).

103807972 is a wasteful number, since it uses less digits than its factorization.

103807972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25951997 (or 25951995 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 103807972 is about 10188.6197298751. The cubic root of 103807972 is about 469.9773219781.

The spelling of 103807972 in words is "one hundred three million, eight hundred seven thousand, nine hundred seventy-two".

Divisors: 1 2 4 25951993 51903986 103807972