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84164860 = 22513323711
BaseRepresentation
bin1010000010001…
…00000011111100
312212101000111001
411001010003330
5133021233420
612203540044
72041250413
oct501040374
9185330431
1084164860
114356633a
122422a624
131458acc0
14b26c47a
1575c7b0a
hex50440fc

84164860 has 24 divisors (see below), whose sum is σ = 190342656. Its totient is φ = 31076160.

The previous prime is 84164849. The next prime is 84164867. The reversal of 84164860 is 6846148.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84164867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161596 + ... + 162115.

It is an arithmetic number, because the mean of its divisors is an integer number (7930944).

Almost surely, 284164860 is an apocalyptic number.

It is an amenable number.

84164860 is an abundant number, since it is smaller than the sum of its proper divisors (106177796).

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

84164860 is a wasteful number, since it uses less digits than its factorization.

84164860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323733 (or 323731 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 84164860 is about 9174.1408317073. The cubic root of 84164860 is about 438.2382376784.

The spelling of 84164860 in words is "eighty-four million, one hundred sixty-four thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 323711 647422 1294844 1618555 3237110 4208243 6474220 8416486 16832972 21041215 42082430 84164860