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164774005 = 5112995891
BaseRepresentation
bin10011101001001…
…00000001110101
3102111001101102221
421310210001311
5314140232010
624203402341
74040361454
oct1164440165
9374041387
10164774005
1185013170
12472233b1
13281a2716
1417c52b9b
15e6ebdda
hex9d24075

164774005 has 8 divisors (see below), whose sum is σ = 215704224. Its totient is φ = 119835600.

The previous prime is 164773951. The next prime is 164774011. The reversal of 164774005 is 500477461.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 164774005 - 221 = 162676853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1497891 + ... + 1498000.

It is an arithmetic number, because the mean of its divisors is an integer number (26963028).

Almost surely, 2164774005 is an apocalyptic number.

It is an amenable number.

164774005 is a deficient number, since it is larger than the sum of its proper divisors (50930219).

164774005 is a wasteful number, since it uses less digits than its factorization.

164774005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2995907.

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

The square root of 164774005 is about 12836.4327209704. The cubic root of 164774005 is about 548.2301289390.

The spelling of 164774005 in words is "one hundred sixty-four million, seven hundred seventy-four thousand, five".

Divisors: 1 5 11 55 2995891 14979455 32954801 164774005