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164625272 = 23719154723
BaseRepresentation
bin10011100111111…
…11101101111000
3102110202211102022
421303333231320
5314121002042
624200254012
74036202030
oct1163775570
9373684368
10164625272
1184a21449
1247171308
132814cb06
1417c148c0
15e6bccd2
hex9cffb78

164625272 has 32 divisors (see below), whose sum is σ = 371337600. Its totient is φ = 66839904.

The previous prime is 164625269. The next prime is 164625277. The reversal of 164625272 is 272526461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164625277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76298 + ... + 78425.

It is an arithmetic number, because the mean of its divisors is an integer number (11604300).

Almost surely, 2164625272 is an apocalyptic number.

It is an amenable number.

164625272 is an abundant number, since it is smaller than the sum of its proper divisors (206712328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164625272 is a wasteful number, since it uses less digits than its factorization.

164625272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154755 (or 154751 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 164625272 is about 12830.6380199895. The cubic root of 164625272 is about 548.0651262574.

The spelling of 164625272 in words is "one hundred sixty-four million, six hundred twenty-five thousand, two hundred seventy-two".

Divisors: 1 2 4 7 8 14 19 28 38 56 76 133 152 266 532 1064 154723 309446 618892 1083061 1237784 2166122 2939737 4332244 5879474 8664488 11758948 20578159 23517896 41156318 82312636 164625272