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88969172 = 2219261613
BaseRepresentation
bin1010100110110…
…00111111010100
320012102002202112
411103120333110
5140234003142
612454530152
72130140225
oct523307724
9205362675
1088969172
1146247946
1225966958
13155809a6
14bb5d24c
157c26382
hex54d8fd4

88969172 has 18 divisors (see below), whose sum is σ = 164324538. Its totient is φ = 42142608.

The previous prime is 88969151. The next prime is 88969189. The reversal of 88969172 is 27196988.

It can be written as a sum of positive squares in only one way, i.e., 45751696 + 43217476 = 6764^2 + 6574^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 88969172.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29363 + ... + 32250.

It is an arithmetic number, because the mean of its divisors is an integer number (9129141).

Almost surely, 288969172 is an apocalyptic number.

It is an amenable number.

88969172 is a deficient number, since it is larger than the sum of its proper divisors (75355366).

88969172 is a wasteful number, since it uses less digits than its factorization.

88969172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61655 (or 61634 counting only the distinct ones).

The product of its digits is 435456, while the sum is 50.

The square root of 88969172 is about 9432.3471098131. The cubic root of 88969172 is about 446.4229533574.

The spelling of 88969172 in words is "eighty-eight million, nine hundred sixty-nine thousand, one hundred seventy-two".

Divisors: 1 2 4 19 38 76 361 722 1444 61613 123226 246452 1170647 2341294 4682588 22242293 44484586 88969172