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84072888 = 23321768687
BaseRepresentation
bin1010000001011…
…01100110111000
312212012100022200
411000231212320
5133010313023
612201550200
72040415314
oct500554670
9185170280
1084072888
1143503229
12241a5360
1314558193
14b246b44
1575aa743
hex502d9b8

84072888 has 48 divisors (see below), whose sum is σ = 241094880. Its totient is φ = 26375424.

The previous prime is 84072887. The next prime is 84072959. The reversal of 84072888 is 88827048.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84072881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33120 + ... + 35567.

It is an arithmetic number, because the mean of its divisors is an integer number (5022810).

Almost surely, 284072888 is an apocalyptic number.

It is an amenable number.

84072888 is an abundant number, since it is smaller than the sum of its proper divisors (157021992).

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

84072888 is a wasteful number, since it uses less digits than its factorization.

84072888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68716 (or 68709 counting only the distinct ones).

The product of its (nonzero) digits is 229376, while the sum is 45.

The square root of 84072888 is about 9169.1268940941. The cubic root of 84072888 is about 438.0785497454.

The spelling of 84072888 in words is "eighty-four million, seventy-two thousand, eight hundred eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 17 18 24 34 36 51 68 72 102 136 153 204 306 408 612 1224 68687 137374 206061 274748 412122 549496 618183 824244 1167679 1236366 1648488 2335358 2472732 3503037 4670716 4945464 7006074 9341432 10509111 14012148 21018222 28024296 42036444 84072888