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164145296 = 2472239103
BaseRepresentation
bin10011100100010…
…10100010010000
3102102212110000102
421302022202100
5314010122141
624142111532
74032132500
oct1162124220
9372773012
10164145296
1184723877
1246b7b5a8
13280124c3
1417b2ba00
15e62599b
hex9c8a890

164145296 has 60 divisors (see below), whose sum is σ = 386082432. Its totient is φ = 67281984.

The previous prime is 164145253. The next prime is 164145299. The reversal of 164145296 is 692541461.

It is not an unprimeable number, because it can be changed into a prime (164145299) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13481 + ... + 22583.

Almost surely, 2164145296 is an apocalyptic number.

164145296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164145296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193041216).

164145296 is an abundant number, since it is smaller than the sum of its proper divisors (221937136).

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

164145296 is a wasteful number, since it uses less digits than its factorization.

164145296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9148 (or 9135 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The square root of 164145296 is about 12811.9200746805. The cubic root of 164145296 is about 547.5319675808.

It can be divided in two parts, 16 and 4145296, that multiplied together give a square (66324736 = 81442).

The spelling of 164145296 in words is "one hundred sixty-four million, one hundred forty-five thousand, two hundred ninety-six".

Divisors: 1 2 4 7 8 14 16 23 28 46 49 56 92 98 112 161 184 196 322 368 392 644 784 1127 1288 2254 2576 4508 9016 9103 18032 18206 36412 63721 72824 127442 145648 209369 254884 418738 446047 509768 837476 892094 1019536 1465583 1674952 1784188 2931166 3349904 3568376 5862332 7136752 10259081 11724664 20518162 23449328 41036324 82072648 164145296