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80539488 = 253331297
BaseRepresentation
bin1001100110011…
…10111101100000
312121112211102000
410303032331200
5131104230423
611554124000
71665401001
oct463167540
9177484360
1080539488
114150a567
1222b80600
13138bbb03
14a9a71a8
15710d843
hex4ccef60

80539488 has 144 divisors (see below), whose sum is σ = 245231280. Its totient is φ = 25712640.

The previous prime is 80539471. The next prime is 80539531. The reversal of 80539488 is 88493508.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 830256 + ... + 830352.

It is an arithmetic number, because the mean of its divisors is an integer number (1702995).

Almost surely, 280539488 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 80539488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122615640).

80539488 is an abundant number, since it is smaller than the sum of its proper divisors (164691792).

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

80539488 is a wasteful number, since it uses less digits than its factorization.

80539488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 80539488 is about 8974.3795328702. The cubic root of 80539488 is about 431.8533452812.

The spelling of 80539488 in words is "eighty million, five hundred thirty-nine thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 31 32 36 48 54 62 72 93 96 97 108 124 144 186 194 216 248 279 288 291 372 388 432 496 558 582 744 776 837 864 873 961 992 1116 1164 1488 1552 1674 1746 1922 2232 2328 2619 2883 2976 3007 3104 3348 3492 3844 4464 4656 5238 5766 6014 6696 6984 7688 8649 8928 9021 9312 10476 11532 12028 13392 13968 15376 17298 18042 20952 23064 24056 25947 26784 27063 27936 30752 34596 36084 41904 46128 48112 51894 54126 69192 72168 81189 83808 92256 93217 96224 103788 108252 138384 144336 162378 186434 207576 216504 276768 279651 288672 324756 372868 415152 433008 559302 649512 745736 830304 838953 866016 1118604 1299024 1491472 1677906 2237208 2516859 2598048 2982944 3355812 4474416 5033718 6711624 8948832 10067436 13423248 20134872 26846496 40269744 80539488