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164957055 = 3510997137
BaseRepresentation
bin10011101010100…
…00101101111111
3102111101200112120
421311100231333
5314212111210
624211334023
74042053234
oct1165205577
9374350476
10164957055
118512874a
12472b1313
1328237b33
1417c9d78b
15e736270
hex9d50b7f

164957055 has 8 divisors (see below), whose sum is σ = 263931312. Its totient is φ = 87977088.

The previous prime is 164957053. The next prime is 164957059. The reversal of 164957055 is 550759461.

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

It is not a de Polignac number, because 164957055 - 21 = 164957053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 164956998 and 164957016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164957053) by changing a digit.

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, 5498554 + ... + 5498583.

It is an arithmetic number, because the mean of its divisors is an integer number (32991414).

Almost surely, 2164957055 is an apocalyptic number.

164957055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

164957055 is a deficient number, since it is larger than the sum of its proper divisors (98974257).

164957055 is a wasteful number, since it uses less digits than its factorization.

164957055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10997145.

The product of its (nonzero) digits is 189000, while the sum is 42.

The square root of 164957055 is about 12843.5608380231. The cubic root of 164957055 is about 548.4330662623.

The spelling of 164957055 in words is "one hundred sixty-four million, nine hundred fifty-seven thousand, fifty-five".

Divisors: 1 3 5 15 10997137 32991411 54985685 164957055