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72452082 = 23109139797
BaseRepresentation
bin1000101000110…
…00011111110010
312001022221120110
410110120133302
5122021431312
611104522150
71536555363
oct424303762
9161287513
1072452082
113799635a
1220320356
1312019971
14989db6a
15656243c
hex45187f2

72452082 has 32 divisors (see below), whose sum is σ = 147470400. Its totient is φ = 23727168.

The previous prime is 72452077. The next prime is 72452087. The reversal of 72452082 is 28025427.

It is an interprime number because it is at equal distance from previous prime (72452077) and next prime (72452087).

It is a super-2 number, since 2×724520822 = 10498608372269448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72452087) 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 15 ways as a sum of consecutive naturals, for example, 90508 + ... + 91304.

It is an arithmetic number, because the mean of its divisors is an integer number (4608450).

Almost surely, 272452082 is an apocalyptic number.

72452082 is an abundant number, since it is smaller than the sum of its proper divisors (75018318).

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

72452082 is a wasteful number, since it uses less digits than its factorization.

72452082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050.

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 72452082 is about 8511.8788760179. The cubic root of 72452082 is about 416.8856600981.

The spelling of 72452082 in words is "seventy-two million, four hundred fifty-two thousand, eighty-two".

Divisors: 1 2 3 6 109 139 218 278 327 417 654 797 834 1594 2391 4782 15151 30302 45453 86873 90906 110783 173746 221566 260619 332349 521238 664698 12075347 24150694 36226041 72452082