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164253023 = 1121357463
BaseRepresentation
bin10011100101001…
…00110101011111
3102110001220210022
421302210311133
5314022044043
624144302355
74033061534
oct1162446537
9373056708
10164253023
1184797800
12470119bb
132804c54c
1417b58d8b
15e647868
hex9ca4d5f

164253023 has 6 divisors (see below), whose sum is σ = 180542712. Its totient is φ = 149320820.

The previous prime is 164253007. The next prime is 164253049. The reversal of 164253023 is 320352461.

It is not a de Polignac number, because 164253023 - 24 = 164253007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164252983 and 164253001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164253923) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 678611 + ... + 678852.

It is an arithmetic number, because the mean of its divisors is an integer number (30090452).

Almost surely, 2164253023 is an apocalyptic number.

164253023 is a deficient number, since it is larger than the sum of its proper divisors (16289689).

164253023 is a wasteful number, since it uses less digits than its factorization.

164253023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357485 (or 1357474 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 164253023 is about 12816.1235558963. The cubic root of 164253023 is about 547.6517213983.

The spelling of 164253023 in words is "one hundred sixty-four million, two hundred fifty-three thousand, twenty-three".

Divisors: 1 11 121 1357463 14932093 164253023