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252303224 = 2331537903
BaseRepresentation
bin11110000100111…
…01011101111000
3122120202022221212
433002131131320
51004042200344
641011422252
76152353625
oct1702353570
9576668855
10252303224
1111a467168
12705b4988
134036ab64
142571934c
151723b79e
hexf09d778

252303224 has 8 divisors (see below), whose sum is σ = 473068560. Its totient is φ = 126151608.

The previous prime is 252303211. The next prime is 252303229. The reversal of 252303224 is 422303252.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 252303224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252303229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15768944 + ... + 15768959.

It is an arithmetic number, because the mean of its divisors is an integer number (59133570).

Almost surely, 2252303224 is an apocalyptic number.

It is an amenable number.

252303224 is a deficient number, since it is larger than the sum of its proper divisors (220765336).

252303224 is a wasteful number, since it uses less digits than its factorization.

252303224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31537909 (or 31537905 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 252303224 is about 15884.0556533903. The cubic root of 252303224 is about 631.8892010539.

Adding to 252303224 its reverse (422303252), we get a palindrome (674606476).

The spelling of 252303224 in words is "two hundred fifty-two million, three hundred three thousand, two hundred twenty-four".

Divisors: 1 2 4 8 31537903 63075806 126151612 252303224