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164402844 = 22315119067
BaseRepresentation
bin10011100110010…
…01011010011100
3102110100112022020
421303021122130
5314041342334
624151420140
74034254404
oct1163113234
9373315266
10164402844
118488a321
1247084650
13280a27b8
1417b97804
15e676e49
hex9cc969c

164402844 has 24 divisors (see below), whose sum is σ = 383902848. Its totient is φ = 54758640.

The previous prime is 164402837. The next prime is 164402863. The reversal of 164402844 is 448204461.

164402844 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×1644028443 (a number of 26 digits) contains 333 as substring.

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, 13599 + ... + 22665.

It is an arithmetic number, because the mean of its divisors is an integer number (15995952).

Almost surely, 2164402844 is an apocalyptic number.

It is an amenable number.

164402844 is an abundant number, since it is smaller than the sum of its proper divisors (219500004).

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

164402844 is a wasteful number, since it uses less digits than its factorization.

164402844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10585 (or 10583 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 33.

The square root of 164402844 is about 12821.9672437579. The cubic root of 164402844 is about 547.8181816413.

The spelling of 164402844 in words is "one hundred sixty-four million, four hundred two thousand, eight hundred forty-four".

Divisors: 1 2 3 4 6 12 1511 3022 4533 6044 9066 9067 18132 18134 27201 36268 54402 108804 13700237 27400474 41100711 54800948 82201422 164402844