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71790996 = 22347127289
BaseRepresentation
bin1000100011101…
…11000110010100
312000002100201210
410101313012110
5121334302441
611042421420
71531133124
oct421670624
9160070653
1071790996
1137584702
1220061870
1311b47aa4
14976ac84
156481616
hex4477194

71790996 has 24 divisors (see below), whose sum is σ = 171077760. Its totient is φ = 23420992.

The previous prime is 71790977. The next prime is 71791003. The reversal of 71790996 is 69909717.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63081 + ... + 64208.

It is an arithmetic number, because the mean of its divisors is an integer number (7128240).

Almost surely, 271790996 is an apocalyptic number.

It is an amenable number.

71790996 is an abundant number, since it is smaller than the sum of its proper divisors (99286764).

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

71790996 is a wasteful number, since it uses less digits than its factorization.

71790996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127343 (or 127341 counting only the distinct ones).

The product of its (nonzero) digits is 214326, while the sum is 48.

The square root of 71790996 is about 8472.9567448442. The cubic root of 71790996 is about 415.6138320326.

The spelling of 71790996 in words is "seventy-one million, seven hundred ninety thousand, nine hundred ninety-six".

Divisors: 1 2 3 4 6 12 47 94 141 188 282 564 127289 254578 381867 509156 763734 1527468 5982583 11965166 17947749 23930332 35895498 71790996