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88042931 = 157560783
BaseRepresentation
bin1010011111101…
…10110110110011
320010200001012022
411033312312303
5140014333211
612423022055
72116231634
oct517666663
9203601168
1088042931
1145774a59
122559a92b
1315318212
14b99b88b
157ae1bdb
hex53f6db3

88042931 has 4 divisors (see below), whose sum is σ = 88603872. Its totient is φ = 87481992.

The previous prime is 88042909. The next prime is 88042939. The reversal of 88042931 is 13924088.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 88042931 - 222 = 83848627 is a prime.

It is a super-2 number, since 2×880429312 = 15503115398141522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 88042891 and 88042900.

It is not an unprimeable number, because it can be changed into a prime (88042939) 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, 280235 + ... + 280548.

It is an arithmetic number, because the mean of its divisors is an integer number (22150968).

Almost surely, 288042931 is an apocalyptic number.

88042931 is a deficient number, since it is larger than the sum of its proper divisors (560941).

88042931 is a wasteful number, since it uses less digits than its factorization.

88042931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560940.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 88042931 is about 9383.1194706238. The cubic root of 88042931 is about 444.8683379375.

The spelling of 88042931 in words is "eighty-eight million, forty-two thousand, nine hundred thirty-one".

Divisors: 1 157 560783 88042931