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252753945 = 3516850263
BaseRepresentation
bin11110001000010…
…11100000011001
3122121121020020020
433010023200121
51004201111240
641025221053
76156241653
oct1704134031
9577536206
10252753945
1111a744864
1270791789
1340498062
14257d56d3
15172ca0d0
hexf10b819

252753945 has 8 divisors (see below), whose sum is σ = 404406336. Its totient is φ = 134802096.

The previous prime is 252753911. The next prime is 252753947. The reversal of 252753945 is 549357252.

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

It is not a de Polignac number, because 252753945 - 28 = 252753689 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 252753897 and 252753906.

It is not an unprimeable number, because it can be changed into a prime (252753947) 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, 8425117 + ... + 8425146.

It is an arithmetic number, because the mean of its divisors is an integer number (50550792).

Almost surely, 2252753945 is an apocalyptic number.

It is an amenable number.

252753945 is a deficient number, since it is larger than the sum of its proper divisors (151652391).

252753945 is a wasteful number, since it uses less digits than its factorization.

252753945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16850271.

The product of its digits is 378000, while the sum is 42.

The square root of 252753945 is about 15898.2371664282. The cubic root of 252753945 is about 632.2652516138.

The spelling of 252753945 in words is "two hundred fifty-two million, seven hundred fifty-three thousand, nine hundred forty-five".

Divisors: 1 3 5 15 16850263 50550789 84251315 252753945