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1207557113 = 71289133831
BaseRepresentation
bin100011111111001…
…1101101111111001
310010011020020221112
41013332131233321
54433113311423
6315454050105
741632031450
oct10776355771
93104206845
101207557113
1156a6a8594
122984a9935
1316323c149
14b6539b97
157102ea78
hex47f9dbf9

1207557113 has 8 divisors (see below), whose sum is σ = 1381146240. Its totient is φ = 1034238240.

The previous prime is 1207557097. The next prime is 1207557119. The reversal of 1207557113 is 3117557021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1207557113 - 24 = 1207557097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1207557113.

It is not an unprimeable number, because it can be changed into a prime (1207557119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57893 + ... + 75938.

It is an arithmetic number, because the mean of its divisors is an integer number (172643280).

Almost surely, 21207557113 is an apocalyptic number.

It is an amenable number.

1207557113 is a deficient number, since it is larger than the sum of its proper divisors (173589127).

1207557113 is a wasteful number, since it uses less digits than its factorization.

1207557113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135127.

The product of its (nonzero) digits is 7350, while the sum is 32.

The square root of 1207557113 is about 34749.9224891222. The cubic root of 1207557113 is about 1064.8846335539.

The spelling of 1207557113 in words is "one billion, two hundred seven million, five hundred fifty-seven thousand, one hundred thirteen".

Divisors: 1 7 1289 9023 133831 936817 172508159 1207557113