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164457007 = 11131318779
BaseRepresentation
bin10011100110101…
…10101000101111
3102110110021121021
421303112220233
5314100111012
624152515011
74034601331
oct1163265057
9373407537
10164457007
1184916a90
12470aba67
13280c1350
1417bad451
15e688007
hex9cd6a2f

164457007 has 16 divisors (see below), whose sum is σ = 194705280. Its totient is φ = 136936800.

The previous prime is 164456939. The next prime is 164457023. The reversal of 164457007 is 700754461.

It is a happy number.

It is not a de Polignac number, because 164457007 - 211 = 164454959 is a prime.

It is a super-2 number, since 2×1644570072 = 54092214302796098, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164457047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14344 + ... + 23122.

It is an arithmetic number, because the mean of its divisors is an integer number (12169080).

Almost surely, 2164457007 is an apocalyptic number.

164457007 is a deficient number, since it is larger than the sum of its proper divisors (30248273).

164457007 is a wasteful number, since it uses less digits than its factorization.

164457007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8934.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 164457007 is about 12824.0791872165. The cubic root of 164457007 is about 547.8783351390.

The spelling of 164457007 in words is "one hundred sixty-four million, four hundred fifty-seven thousand, seven".

Divisors: 1 11 13 131 143 1441 1703 8779 18733 96569 114127 1150049 1255397 12650539 14950637 164457007