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164708516 = 227291931051
BaseRepresentation
bin10011101000101…
…00000010100100
3102110221001121102
421310110002210
5314131133031
624202135232
74036666520
oct1164240244
9373831542
10164708516
1184a78a45
12471b1518
132817b97b
1417c36d80
15e6d77cb
hex9d140a4

164708516 has 48 divisors (see below), whose sum is σ = 342867840. Its totient is φ = 67737600.

The previous prime is 164708501. The next prime is 164708561. The reversal of 164708516 is 615807461.

It is a self number, because there is not a number n which added to its sum of digits gives 164708516.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156191 + ... + 157241.

It is an arithmetic number, because the mean of its divisors is an integer number (7143080).

Almost surely, 2164708516 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164708516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171433920).

164708516 is an abundant number, since it is smaller than the sum of its proper divisors (178159324).

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

164708516 is a wasteful number, since it uses less digits than its factorization.

164708516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284 (or 1282 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 164708516 is about 12833.8815640476. The cubic root of 164708516 is about 548.1574884346.

The spelling of 164708516 in words is "one hundred sixty-four million, seven hundred eight thousand, five hundred sixteen".

Divisors: 1 2 4 7 14 28 29 58 116 193 203 386 406 772 812 1051 1351 2102 2702 4204 5404 5597 7357 11194 14714 22388 29428 30479 39179 60958 78358 121916 156716 202843 213353 405686 426706 811372 853412 1419901 2839802 5679604 5882447 11764894 23529788 41177129 82354258 164708516