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76290816 = 283723617
BaseRepresentation
bin1001000110000…
…01101100000000
312022112222022210
410203001230000
5124012301231
611323102120
71614314130
oct443015400
9168488283
1076290816
113a078468
1221671940
1312a61cc4
14a1bcac0
156a6ea46
hex48c1b00

76290816 has 144 divisors (see below), whose sum is σ = 242532864. Its totient is φ = 20815872.

The previous prime is 76290803. The next prime is 76290817. The reversal of 76290816 is 61809267.

It is not an unprimeable number, because it can be changed into a prime (76290817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123340 + ... + 123956.

It is an arithmetic number, because the mean of its divisors is an integer number (1684256).

Almost surely, 276290816 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 76290816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121266432).

76290816 is an abundant number, since it is smaller than the sum of its proper divisors (166242048).

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

76290816 is a wasteful number, since it uses less digits than its factorization.

76290816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666 (or 652 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 76290816 is about 8734.4614029716. The cubic root of 76290816 is about 424.1219537648.

The spelling of 76290816 in words is "seventy-six million, two hundred ninety thousand, eight hundred sixteen".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 23 24 28 32 42 46 48 56 64 69 84 92 96 112 128 138 161 168 184 192 224 256 276 322 336 368 384 448 483 552 617 644 672 736 768 896 966 1104 1234 1288 1344 1472 1792 1851 1932 2208 2468 2576 2688 2944 3702 3864 4319 4416 4936 5152 5376 5888 7404 7728 8638 8832 9872 10304 12957 14191 14808 15456 17276 17664 19744 20608 25914 28382 29616 30912 34552 39488 41216 42573 51828 56764 59232 61824 69104 78976 85146 99337 103656 113528 118464 123648 138208 157952 170292 198674 207312 227056 236928 276416 298011 340584 397348 414624 454112 473856 552832 596022 681168 794696 829248 908224 1105664 1192044 1362336 1589392 1658496 1816448 2384088 2724672 3178784 3316992 3632896 4768176 5449344 6357568 9536352 10898688 12715136 19072704 25430272 38145408 76290816