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72152630 = 25116110753
BaseRepresentation
bin1000100110011…
…11011000110110
312000202201210122
410103033120312
5121432341010
611054251542
71534200344
oct423173066
9160681718
1072152630
1137801380
12201b6bb2
1311c43584
149822994
156503855
hex44cf636

72152630 has 32 divisors (see below), whose sum is σ = 144017568. Its totient is φ = 25804800.

The previous prime is 72152623. The next prime is 72152653. The reversal of 72152630 is 3625127.

It is a self number, because there is not a number n which added to its sum of digits gives 72152630.

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, 1334 + ... + 12086.

It is an arithmetic number, because the mean of its divisors is an integer number (4500549).

Almost surely, 272152630 is an apocalyptic number.

72152630 is a deficient number, since it is larger than the sum of its proper divisors (71864938).

72152630 is a wasteful number, since it uses less digits than its factorization.

72152630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10832.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 72152630 is about 8494.2704218785. The cubic root of 72152630 is about 416.3105230527.

Adding to 72152630 its reverse (3625127), we get a palindrome (75777757).

The spelling of 72152630 in words is "seventy-two million, one hundred fifty-two thousand, six hundred thirty".

Divisors: 1 2 5 10 11 22 55 61 110 122 305 610 671 1342 3355 6710 10753 21506 53765 107530 118283 236566 591415 655933 1182830 1311866 3279665 6559330 7215263 14430526 36076315 72152630