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64000145125 = 53773143023
BaseRepresentation
bin111011100110101101…
…001011011011100101
320010012021120020021101
4323212231023123211
52022033014121000
645222401120101
74423661154250
oct734655133345
9203167506241
1064000145125
1125162460324
12104a1629031
13605c3cc977
143151c44097
1519e8a05e6a
hexee6b4b6e5

64000145125 has 16 divisors (see below), whose sum is σ = 91282493952. Its totient is φ = 43885813200.

The previous prime is 64000145113. The next prime is 64000145147. The reversal of 64000145125 is 52154100046.

It is not a de Polignac number, because 64000145125 - 25 = 64000145093 is a prime.

It is a super-2 number, since 2×640001451252 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64000145093 and 64000145102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36570637 + ... + 36572386.

It is an arithmetic number, because the mean of its divisors is an integer number (5705155872).

Almost surely, 264000145125 is an apocalyptic number.

It is an amenable number.

64000145125 is a deficient number, since it is larger than the sum of its proper divisors (27282348827).

64000145125 is an equidigital number, since it uses as much as digits as its factorization.

64000145125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73143045 (or 73143035 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The spelling of 64000145125 in words is "sixty-four billion, one hundred forty-five thousand, one hundred twenty-five".

Divisors: 1 5 7 25 35 125 175 875 73143023 365715115 512001161 1828575575 2560005805 9142877875 12800029025 64000145125