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166214510 = 25711215863
BaseRepresentation
bin10011110100000…
…11101101101110
3102120202120102222
421322003231232
5320022331020
624254315342
74055541260
oct1172035556
9376676388
10166214510
1185907470
12477b8b52
13285882a7
1418109b30
15e8d3b25
hex9e83b6e

166214510 has 32 divisors (see below), whose sum is σ = 373012992. Its totient is φ = 51806880.

The previous prime is 166214509. The next prime is 166214539. The reversal of 166214510 is 15412661.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 166214510.

It is a congruent number.

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, 107162 + ... + 108701.

It is an arithmetic number, because the mean of its divisors is an integer number (11656656).

Almost surely, 2166214510 is an apocalyptic number.

166214510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166214510 is an abundant number, since it is smaller than the sum of its proper divisors (206798482).

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

166214510 is a wasteful number, since it uses less digits than its factorization.

166214510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215888.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 166214510 is about 12892.4206416018. The cubic root of 166214510 is about 549.8230946203.

The spelling of 166214510 in words is "one hundred sixty-six million, two hundred fourteen thousand, five hundred ten".

Divisors: 1 2 5 7 10 11 14 22 35 55 70 77 110 154 385 770 215863 431726 1079315 1511041 2158630 2374493 3022082 4748986 7555205 11872465 15110410 16621451 23744930 33242902 83107255 166214510