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83804072 = 23115916141
BaseRepresentation
bin1001111111010…
…11111110101000
312211200200120112
410333223332220
5132423212242
612152113452
72035215512
oct477537650
9184620515
1083804072
114333a270
1224095888
1314492a11
14b1b6bb2
157555c82
hex4febfa8

83804072 has 32 divisors (see below), whose sum is σ = 174333600. Its totient is φ = 37444800.

The previous prime is 83804053. The next prime is 83804081. The reversal of 83804072 is 27040838.

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, 2879 + ... + 13262.

It is an arithmetic number, because the mean of its divisors is an integer number (5447925).

Almost surely, 283804072 is an apocalyptic number.

It is an amenable number.

83804072 is an abundant number, since it is smaller than the sum of its proper divisors (90529528).

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

83804072 is a wasteful number, since it uses less digits than its factorization.

83804072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16217 (or 16213 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 83804072 is about 9154.4564011196. The cubic root of 83804072 is about 437.6111447686.

The spelling of 83804072 in words is "eighty-three million, eight hundred four thousand, seventy-two".

Divisors: 1 2 4 8 11 22 44 59 88 118 236 472 649 1298 2596 5192 16141 32282 64564 129128 177551 355102 710204 952319 1420408 1904638 3809276 7618552 10475509 20951018 41902036 83804072