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88113181 = 1315144887
BaseRepresentation
bin1010100000010…
…00000000011101
320010210121120011
411100020000131
5140024110211
612424323221
72116643512
oct520100035
9203717504
1088113181
1145812812
1225613511
13153411a0
14b9b9309
157b07921
hex540801d

88113181 has 8 divisors (see below), whose sum is σ = 95521664. Its totient is φ = 80794800.

The previous prime is 88113173. The next prime is 88113199. The reversal of 88113181 is 18131188.

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 88113181 - 23 = 88113173 is a prime.

It is a super-2 number, since 2×881131812 = 15527865331877522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88113131) 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, 20481 + ... + 24406.

It is an arithmetic number, because the mean of its divisors is an integer number (11940208).

Almost surely, 288113181 is an apocalyptic number.

It is an amenable number.

88113181 is a deficient number, since it is larger than the sum of its proper divisors (7408483).

88113181 is a wasteful number, since it uses less digits than its factorization.

88113181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45051.

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

The square root of 88113181 is about 9386.8621487694. The cubic root of 88113181 is about 444.9866275492.

The spelling of 88113181 in words is "eighty-eight million, one hundred thirteen thousand, one hundred eighty-one".

Divisors: 1 13 151 1963 44887 583531 6777937 88113181