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72379630 = 2510171663
BaseRepresentation
bin1000101000001…
…10110011101110
312001012021012001
410110012303232
5122012122010
611103202514
71536134221
oct424066356
9161167161
1072379630
1137946984
12202a643a
1311cc29ab
1498815b8
15654ac3a
hex4506cee

72379630 has 16 divisors (see below), whose sum is σ = 131575104. Its totient is φ = 28664800.

The previous prime is 72379627. The next prime is 72379633. The reversal of 72379630 is 3697327.

It is an interprime number because it is at equal distance from previous prime (72379627) and next prime (72379633).

It is a self number, because there is not a number n which added to its sum of digits gives 72379630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72379633) 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 7 ways as a sum of consecutive naturals, for example, 34822 + ... + 36841.

It is an arithmetic number, because the mean of its divisors is an integer number (8223444).

Almost surely, 272379630 is an apocalyptic number.

72379630 is a deficient number, since it is larger than the sum of its proper divisors (59195474).

72379630 is a wasteful number, since it uses less digits than its factorization.

72379630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71771.

The product of its (nonzero) digits is 47628, while the sum is 37.

The square root of 72379630 is about 8507.6218768819. The cubic root of 72379630 is about 416.7466520224.

The spelling of 72379630 in words is "seventy-two million, three hundred seventy-nine thousand, six hundred thirty".

Divisors: 1 2 5 10 101 202 505 1010 71663 143326 358315 716630 7237963 14475926 36189815 72379630