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164136460 = 22519741659
BaseRepresentation
bin10011100100010…
…00011000001100
3102102211222220011
421302020120030
5314004331320
624142003004
74032064645
oct1162103014
9372758804
10164136460
1184718174
1246b76464
132800b487
1417b286cc
15e62305a
hex9c8860c

164136460 has 24 divisors (see below), whose sum is σ = 346444560. Its totient is φ = 65319744.

The previous prime is 164136439. The next prime is 164136473. The reversal of 164136460 is 64631461.

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, 16890 + ... + 24769.

It is an arithmetic number, because the mean of its divisors is an integer number (14435190).

Almost surely, 2164136460 is an apocalyptic number.

164136460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164136460 is an abundant number, since it is smaller than the sum of its proper divisors (182308100).

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

164136460 is a wasteful number, since it uses less digits than its factorization.

164136460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41865 (or 41863 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 164136460 is about 12811.5752349194. The cubic root of 164136460 is about 547.5221427906.

The spelling of 164136460 in words is "one hundred sixty-four million, one hundred thirty-six thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 197 394 788 985 1970 3940 41659 83318 166636 208295 416590 833180 8206823 16413646 32827292 41034115 82068230 164136460