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88121438 = 2172591807
BaseRepresentation
bin1010100000010…
…10000001011110
320010211000212222
411100022001132
5140024341223
612424425342
72120006546
oct520120136
9203730788
1088121438
1145818a39
1225618252
1315344b82
14b9bc326
157b0a0c8
hex540a05e

88121438 has 8 divisors (see below), whose sum is σ = 139957632. Its totient is φ = 41468896.

The previous prime is 88121417. The next prime is 88121447. The reversal of 88121438 is 83412188.

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

It is a junction number, because it is equal to n+sod(n) for n = 88121398 and 88121407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1295870 + ... + 1295937.

It is an arithmetic number, because the mean of its divisors is an integer number (17494704).

Almost surely, 288121438 is an apocalyptic number.

88121438 is a deficient number, since it is larger than the sum of its proper divisors (51836194).

88121438 is a wasteful number, since it uses less digits than its factorization.

88121438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2591826.

The product of its digits is 12288, while the sum is 35.

The square root of 88121438 is about 9387.3019553011. The cubic root of 88121438 is about 445.0005268689. Note that the first 3 decimals are identical.

The spelling of 88121438 in words is "eighty-eight million, one hundred twenty-one thousand, four hundred thirty-eight".

Divisors: 1 2 17 34 2591807 5183614 44060719 88121438