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76146720 = 25351312203
BaseRepresentation
bin1001000100111…
…10100000100000
312022021122122220
410202132200200
5123443143340
611320031040
71613144046
oct442364040
9168248586
1076146720
1139a8a181
1221602480
1312a11540
14a182396
156a41ed0
hex489e820

76146720 has 96 divisors (see below), whose sum is σ = 258334272. Its totient is φ = 18742272.

The previous prime is 76146713. The next prime is 76146751. The reversal of 76146720 is 2764167.

It is a tau number, because it is divible by the number of its divisors (96).

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, 139 + ... + 12341.

It is an arithmetic number, because the mean of its divisors is an integer number (2690982).

Almost surely, 276146720 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 76146720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129167136).

76146720 is an abundant number, since it is smaller than the sum of its proper divisors (182187552).

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

76146720 is a wasteful number, since it uses less digits than its factorization.

76146720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12234 (or 12226 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 76146720 is about 8726.2087987854. The cubic root of 76146720 is about 423.8547621697.

The spelling of 76146720 in words is "seventy-six million, one hundred forty-six thousand, seven hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 32 39 40 48 52 60 65 78 80 96 104 120 130 156 160 195 208 240 260 312 390 416 480 520 624 780 1040 1248 1560 2080 3120 6240 12203 24406 36609 48812 61015 73218 97624 122030 146436 158639 183045 195248 244060 292872 317278 366090 390496 475917 488120 585744 634556 732180 793195 951834 976240 1171488 1269112 1464360 1586390 1903668 1952480 2379585 2538224 2928720 3172780 3807336 4759170 5076448 5857440 6345560 7614672 9518340 12691120 15229344 19036680 25382240 38073360 76146720