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88308072 = 23321226501
BaseRepresentation
bin1010100001101…
…11100101101000
320011011111220100
411100313211220
5140101324242
612432425400
72121414636
oct520674550
9204144810
1088308072
1145936186
12256a8260
13153abac8
14ba2a356
157b4554c
hex5437968

88308072 has 24 divisors (see below), whose sum is σ = 239167890. Its totient is φ = 29436000.

The previous prime is 88308061. The next prime is 88308079. The reversal of 88308072 is 27080388.

It can be written as a sum of positive squares in only one way, i.e., 50041476 + 38266596 = 7074^2 + 6186^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (88308079) 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 5 ways as a sum of consecutive naturals, for example, 613179 + ... + 613322.

Almost surely, 288308072 is an apocalyptic number.

It is an amenable number.

88308072 is an abundant number, since it is smaller than the sum of its proper divisors (150859818).

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

88308072 is a wasteful number, since it uses less digits than its factorization.

88308072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226513 (or 1226506 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 88308072 is about 9397.2374664047. The cubic root of 88308072 is about 445.3144635851.

The spelling of 88308072 in words is "eighty-eight million, three hundred eight thousand, seventy-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 1226501 2453002 3679503 4906004 7359006 9812008 11038509 14718012 22077018 29436024 44154036 88308072