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252946284 = 22321078857
BaseRepresentation
bin11110001001110…
…10011101101100
3122121222000001220
433010322131230
51004223240114
641033303340
76161002503
oct1704723554
9577860056
10252946284
1111a866318
1270864b50
1340534776
142584583a
15173170a9
hexf13a76c

252946284 has 12 divisors (see below), whose sum is σ = 590208024. Its totient is φ = 84315424.

The previous prime is 252946283. The next prime is 252946289. The reversal of 252946284 is 482649252.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (252946283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10539417 + ... + 10539440.

It is an arithmetic number, because the mean of its divisors is an integer number (49184002).

Almost surely, 2252946284 is an apocalyptic number.

It is an amenable number.

252946284 is an abundant number, since it is smaller than the sum of its proper divisors (337261740).

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

252946284 is a wasteful number, since it uses less digits than its factorization.

252946284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21078864 (or 21078862 counting only the distinct ones).

The product of its digits is 276480, while the sum is 42.

The square root of 252946284 is about 15904.2850829580. The cubic root of 252946284 is about 632.4255899383.

The spelling of 252946284 in words is "two hundred fifty-two million, nine hundred forty-six thousand, two hundred eighty-four".

Divisors: 1 2 3 4 6 12 21078857 42157714 63236571 84315428 126473142 252946284