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252305412 = 22333163521
BaseRepresentation
bin11110000100111…
…10000000000100
3122120202102221220
433002132000010
51004042233122
641011440340
76152363202
oct1702360004
9576672856
10252305412
1111a468877
12705b60b0
134036bb58
142571a072
151723c25c
hexf09e004

252305412 has 24 divisors (see below), whose sum is σ = 590500512. Its totient is φ = 83846400.

The previous prime is 252305407. The next prime is 252305413. The reversal of 252305412 is 214503252.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (252305413) 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, 27789 + ... + 35732.

It is an arithmetic number, because the mean of its divisors is an integer number (24604188).

Almost surely, 2252305412 is an apocalyptic number.

It is an amenable number.

252305412 is an abundant number, since it is smaller than the sum of its proper divisors (338195100).

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

252305412 is a wasteful number, since it uses less digits than its factorization.

252305412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63859 (or 63857 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 252305412 is about 15884.1245273386. The cubic root of 252305412 is about 631.8910276518.

Adding to 252305412 its reverse (214503252), we get a palindrome (466808664).

The spelling of 252305412 in words is "two hundred fifty-two million, three hundred five thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 331 662 993 1324 1986 3972 63521 127042 190563 254084 381126 762252 21025451 42050902 63076353 84101804 126152706 252305412