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72058164 = 22353137827
BaseRepresentation
bin1000100101110…
…00010100110100
312000120221012220
410102320110310
5121421330124
611052242340
71533325053
oct422702464
9160527186
1072058164
1137747402
12201703b0
1311c0c589
1497da39a
1564d5879
hex44b8534

72058164 has 48 divisors (see below), whose sum is σ = 172767168. Its totient is φ = 23365888.

The previous prime is 72058163. The next prime is 72058183. The reversal of 72058164 is 46185027.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72058163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86719 + ... + 87545.

It is an arithmetic number, because the mean of its divisors is an integer number (3599316).

Almost surely, 272058164 is an apocalyptic number.

It is an amenable number.

72058164 is an abundant number, since it is smaller than the sum of its proper divisors (100709004).

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

72058164 is a wasteful number, since it uses less digits than its factorization.

72058164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024 (or 1022 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 72058164 is about 8488.7080289052. The cubic root of 72058164 is about 416.1287585282.

The spelling of 72058164 in words is "seventy-two million, fifty-eight thousand, one hundred sixty-four".

Divisors: 1 2 3 4 6 12 53 106 137 159 212 274 318 411 548 636 822 827 1644 1654 2481 3308 4962 7261 9924 14522 21783 29044 43566 43831 87132 87662 113299 131493 175324 226598 262986 339897 453196 525972 679794 1359588 6004847 12009694 18014541 24019388 36029082 72058164