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1118888113 = 7971647847
BaseRepresentation
bin100001010110000…
…1110000010110001
32212222101101221111
41002230032002301
54242413404423
6303005353321
736504251320
oct10254160261
92788341844
101118888113
11524646222
12272868841
1314aa64c95
14a88580b7
156836760d
hex42b0e0b1

1118888113 has 8 divisors (see below), whose sum is σ = 1291912832. Its totient is φ = 949159296.

The previous prime is 1118888087. The next prime is 1118888171. The reversal of 1118888113 is 3118888111.

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

It is a cyclic number.

It is not a de Polignac number, because 1118888113 - 25 = 1118888081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1118888713) 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, 823245 + ... + 824602.

It is an arithmetic number, because the mean of its divisors is an integer number (161489104).

Almost surely, 21118888113 is an apocalyptic number.

It is an amenable number.

1118888113 is a deficient number, since it is larger than the sum of its proper divisors (173024719).

1118888113 is an equidigital number, since it uses as much as digits as its factorization.

1118888113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1647951.

The product of its digits is 12288, while the sum is 40.

The square root of 1118888113 is about 33449.7849469918. The cubic root of 1118888113 is about 1038.1550478528.

The spelling of 1118888113 in words is "one billion, one hundred eighteen million, eight hundred eighty-eight thousand, one hundred thirteen".

Divisors: 1 7 97 679 1647847 11534929 159841159 1118888113