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75465972 = 22331973547
BaseRepresentation
bin1000111111110…
…00010011110100
312021000001212000
410133320103310
5123304402342
611253255300
71604310261
oct437702364
9167001760
1075465972
113966477a
1221334530
131283372a
14a046268
15695a44c
hex47f84f4

75465972 has 48 divisors (see below), whose sum is σ = 196701120. Its totient is φ = 25020576.

The previous prime is 75465961. The next prime is 75466003. The reversal of 75465972 is 27956457.

75465972 is a `hidden beast` number, since 7 + 54 + 6 + 597 + 2 = 666.

It is a super-2 number, since 2×754659722 = 11390225859809568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19503 + ... + 23049.

It is an arithmetic number, because the mean of its divisors is an integer number (4097940).

Almost surely, 275465972 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 75465972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98350560).

75465972 is an abundant number, since it is smaller than the sum of its proper divisors (121235148).

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

75465972 is a wasteful number, since it uses less digits than its factorization.

75465972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3757 (or 3749 counting only the distinct ones).

The product of its digits is 529200, while the sum is 45.

The square root of 75465972 is about 8687.1152864458. The cubic root of 75465972 is about 422.5878990349.

The spelling of 75465972 in words is "seventy-five million, four hundred sixty-five thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 197 394 591 788 1182 1773 2364 3546 3547 5319 7092 7094 10638 10641 14188 21276 21282 31923 42564 63846 95769 127692 191538 383076 698759 1397518 2096277 2795036 4192554 6288831 8385108 12577662 18866493 25155324 37732986 75465972