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75348972 = 223231107631
BaseRepresentation
bin1000111110110…
…11101111101100
312020210010100200
410133123233230
5123242131342
611250553500
71603312206
oct437335754
9166703320
1075348972
1139594886
1221298890
13127c23ba
14a015776
15693594c
hex47dbbec

75348972 has 72 divisors (see below), whose sum is σ = 198761472. Its totient is φ = 24040800.

The previous prime is 75348971. The next prime is 75348991. The reversal of 75348972 is 27984357.

It is not an unprimeable number, because it can be changed into a prime (75348971) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119097 + ... + 119727.

It is an arithmetic number, because the mean of its divisors is an integer number (2760576).

Almost surely, 275348972 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75348972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99380736).

75348972 is an abundant number, since it is smaller than the sum of its proper divisors (123412500).

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

75348972 is a wasteful number, since it uses less digits than its factorization.

75348972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779 (or 774 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 75348972 is about 8680.3785631734. The cubic root of 75348972 is about 422.3693972104.

The spelling of 75348972 in words is "seventy-five million, three hundred forty-eight thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 31 36 62 93 107 124 186 214 279 321 372 428 558 631 642 963 1116 1262 1284 1893 1926 2524 3317 3786 3852 5679 6634 7572 9951 11358 13268 19561 19902 22716 29853 39122 39804 58683 59706 67517 78244 117366 119412 135034 176049 202551 234732 270068 352098 405102 607653 704196 810204 1215306 2093027 2430612 4186054 6279081 8372108 12558162 18837243 25116324 37674486 75348972