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164953210 = 2517970313
BaseRepresentation
bin10011101010011…
…11110001111010
3102111101111021011
421311033301322
5314212000320
624211304134
74042036102
oct1165176172
9374344234
10164953210
1185125874
12472ab04a
1328236166
1417c9c202
15e73505a
hex9d4fc7a

164953210 has 16 divisors (see below), whose sum is σ = 314381736. Its totient is φ = 62099968.

The previous prime is 164953183. The next prime is 164953267. The reversal of 164953210 is 12359461.

It can be written as a sum of positive squares in 4 ways, for example, as 159491641 + 5461569 = 12629^2 + 2337^2 .

It is a super-2 number, since 2×1649532102 = 54419122978608200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 484987 + ... + 485326.

Almost surely, 2164953210 is an apocalyptic number.

164953210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164953210 is a deficient number, since it is larger than the sum of its proper divisors (149428526).

164953210 is a wasteful number, since it uses less digits than its factorization.

164953210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970337.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 164953210 is about 12843.4111512479. The cubic root of 164953210 is about 548.4288050694.

The spelling of 164953210 in words is "one hundred sixty-four million, nine hundred fifty-three thousand, two hundred ten".

Divisors: 1 2 5 10 17 34 85 170 970313 1940626 4851565 9703130 16495321 32990642 82476605 164953210