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88181113 = 223395431
BaseRepresentation
bin1010100000110…
…00100101111001
320010221001202011
411100120211321
5140033243423
612430005521
72120345536
oct520304571
9203831664
1088181113
1145859859
12256468a1
1315366097
14b9d5d8d
157b1cb0d
hex5418979

88181113 has 4 divisors (see below), whose sum is σ = 88576768. Its totient is φ = 87785460.

The previous prime is 88181099. The next prime is 88181123. The reversal of 88181113 is 31118188.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 88181113 - 213 = 88172921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88181123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197493 + ... + 197938.

It is an arithmetic number, because the mean of its divisors is an integer number (22144192).

Almost surely, 288181113 is an apocalyptic number.

It is an amenable number.

88181113 is a deficient number, since it is larger than the sum of its proper divisors (395655).

88181113 is a wasteful number, since it uses less digits than its factorization.

88181113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395654.

The product of its digits is 1536, while the sum is 31.

The square root of 88181113 is about 9390.4799131887. The cubic root of 88181113 is about 445.1009542448.

The spelling of 88181113 in words is "eighty-eight million, one hundred eighty-one thousand, one hundred thirteen".

Divisors: 1 223 395431 88181113