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88937381 = 1337184901
BaseRepresentation
bin1010100110100…
…01001110100101
320012100111011002
411103101032211
5140231444011
612454123045
72126645441
oct523211645
9205314132
1088937381
1146225a75
1225950485
131556c390
14bb51821
157c1bc3b
hex54d13a5

88937381 has 8 divisors (see below), whose sum is σ = 98367864. Its totient is φ = 79876800.

The previous prime is 88937377. The next prime is 88937411. The reversal of 88937381 is 18373988.

It can be written as a sum of positive squares in 4 ways, for example, as 47128225 + 41809156 = 6865^2 + 6466^2 .

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 88937381 - 22 = 88937377 is a prime.

It is a super-2 number, since 2×889373812 = 15819715478278322, 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 (88937311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91970 + ... + 92931.

It is an arithmetic number, because the mean of its divisors is an integer number (12295983).

Almost surely, 288937381 is an apocalyptic number.

It is an amenable number.

88937381 is a deficient number, since it is larger than the sum of its proper divisors (9430483).

88937381 is a wasteful number, since it uses less digits than its factorization.

88937381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184951.

The product of its digits is 290304, while the sum is 47.

The square root of 88937381 is about 9430.6617477248. The cubic root of 88937381 is about 446.3697741773.

The spelling of 88937381 in words is "eighty-eight million, nine hundred thirty-seven thousand, three hundred eighty-one".

Divisors: 1 13 37 481 184901 2403713 6841337 88937381