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72956316 = 223172109193
BaseRepresentation
bin1000101100100…
…11100110011100
312002021120020210
410112103212130
5122134100231
611123412420
71544055426
oct426234634
9162246223
1072956316
1138200184
1220524110
1312165324
149991816
156611a46
hex459399c

72956316 has 72 divisors (see below), whose sum is σ = 183438640. Its totient is φ = 22560768.

The previous prime is 72956291. The next prime is 72956321. The reversal of 72956316 is 61365927.

Its product of digits (68040) is a multiple of the sum of its prime divisors (324).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 377916 + ... + 378108.

Almost surely, 272956316 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 72956316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91719320).

72956316 is an abundant number, since it is smaller than the sum of its proper divisors (110482324).

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

72956316 is a wasteful number, since it uses less digits than its factorization.

72956316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343 (or 324 counting only the distinct ones).

The product of its digits is 68040, while the sum is 39.

The square root of 72956316 is about 8541.4469500197. The cubic root of 72956316 is about 417.8505375911.

The spelling of 72956316 in words is "seventy-two million, nine hundred fifty-six thousand, three hundred sixteen".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 109 193 204 218 289 327 386 436 578 579 654 772 867 1156 1158 1308 1734 1853 2316 3281 3468 3706 5559 6562 7412 9843 11118 13124 19686 21037 22236 31501 39372 42074 55777 63002 63111 84148 94503 111554 126004 126222 167331 189006 223108 252444 334662 357629 378012 669324 715258 1072887 1430516 2145774 4291548 6079693 12159386 18239079 24318772 36478158 72956316