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164226957 = 3191286609
BaseRepresentation
bin10011100100111…
…10011110001101
3102110000121000220
421302132132031
5314020230312
624143541553
74032622536
oct1162363615
9373017026
10164226957
118477a164
1246bba8b9
132804071b
1417b4d68d
15e63ec8c
hex9c9e78d

164226957 has 8 divisors (see below), whose sum is σ = 220116480. Its totient is φ = 108911040.

The previous prime is 164226949. The next prime is 164226961. The reversal of 164226957 is 759622461.

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

It is not a de Polignac number, because 164226957 - 23 = 164226949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164228957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142732 + ... + 143877.

It is an arithmetic number, because the mean of its divisors is an integer number (27514560).

Almost surely, 2164226957 is an apocalyptic number.

It is an amenable number.

164226957 is a deficient number, since it is larger than the sum of its proper divisors (55889523).

164226957 is a wasteful number, since it uses less digits than its factorization.

164226957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286803.

The product of its digits is 181440, while the sum is 42.

The square root of 164226957 is about 12815.1065933920. The cubic root of 164226957 is about 547.6227501507.

The spelling of 164226957 in words is "one hundred sixty-four million, two hundred twenty-six thousand, nine hundred fifty-seven".

Divisors: 1 3 191 573 286609 859827 54742319 164226957