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72948192 = 2536112457
BaseRepresentation
bin1000101100100…
…01100111100000
312002021011002220
410112101213200
5122133320232
611123311040
71544022642
oct426214740
9162234086
1072948192
11381a5069
122051b480
1312161715
14998c892
15660e42c
hex45919e0

72948192 has 48 divisors (see below), whose sum is σ = 194643792. Its totient is φ = 23915520.

The previous prime is 72948181. The next prime is 72948199. The reversal of 72948192 is 29184927.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72948199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373 + ... + 12084.

It is an arithmetic number, because the mean of its divisors is an integer number (4055079).

Almost surely, 272948192 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 72948192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97321896).

72948192 is an abundant number, since it is smaller than the sum of its proper divisors (121695600).

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

72948192 is a wasteful number, since it uses less digits than its factorization.

72948192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12531 (or 12523 counting only the distinct ones).

The product of its digits is 72576, while the sum is 42.

The square root of 72948192 is about 8540.9713733275. The cubic root of 72948192 is about 417.8350271964.

The spelling of 72948192 in words is "seventy-two million, nine hundred forty-eight thousand, one hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 61 96 122 183 244 366 488 732 976 1464 1952 2928 5856 12457 24914 37371 49828 74742 99656 149484 199312 298968 398624 597936 759877 1195872 1519754 2279631 3039508 4559262 6079016 9118524 12158032 18237048 24316064 36474096 72948192