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164375830 = 2537212007
BaseRepresentation
bin10011100110000…
…10110100010110
3102110022011020201
421303002310112
5314040011310
624151051114
74034112553
oct1163026426
9373264221
10164375830
1184870aa3
1247070a9a
1328093408
1417b8ba2a
15e66de3a
hex9cc2d16

164375830 has 24 divisors (see below), whose sum is σ = 304114608. Its totient is φ = 63967968.

The previous prime is 164375819. The next prime is 164375837. The reversal of 164375830 is 38573461.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 164375830.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164375837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7687 + ... + 19693.

It is an arithmetic number, because the mean of its divisors is an integer number (12671442).

Almost surely, 2164375830 is an apocalyptic number.

164375830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164375830 is a deficient number, since it is larger than the sum of its proper divisors (139738778).

164375830 is a wasteful number, since it uses less digits than its factorization.

164375830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12088 (or 12051 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 164375830 is about 12820.9137739866. The cubic root of 164375830 is about 547.7881749199.

The spelling of 164375830 in words is "one hundred sixty-four million, three hundred seventy-five thousand, eight hundred thirty".

Divisors: 1 2 5 10 37 74 185 370 1369 2738 6845 12007 13690 24014 60035 120070 444259 888518 2221295 4442590 16437583 32875166 82187915 164375830