Search a number
-
+
88023138 = 2372095789
BaseRepresentation
bin1010011111100…
…10000001100010
320010122001001020
411033302001202
5140013220023
612422350310
72116120140
oct517620142
9203561036
1088023138
11457610a5
122558b396
131530c1c8
14b994590
157adade3
hex53f2062

88023138 has 16 divisors (see below), whose sum is σ = 201195840. Its totient is φ = 25149456.

The previous prime is 88023137. The next prime is 88023163. The reversal of 88023138 is 83132088.

It is a junction number, because it is equal to n+sod(n) for n = 88023099 and 88023108.

It is not an unprimeable number, because it can be changed into a prime (88023137) 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, 1047853 + ... + 1047936.

It is an arithmetic number, because the mean of its divisors is an integer number (12574740).

Almost surely, 288023138 is an apocalyptic number.

88023138 is an abundant number, since it is smaller than the sum of its proper divisors (113172702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

88023138 is a wasteful number, since it uses less digits than its factorization.

88023138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2095801.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 88023138 is about 9382.0646981355. The cubic root of 88023138 is about 444.8349983729.

The spelling of 88023138 in words is "eighty-eight million, twenty-three thousand, one hundred thirty-eight".

Divisors: 1 2 3 6 7 14 21 42 2095789 4191578 6287367 12574734 14670523 29341046 44011569 88023138