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51252652 = 221119101607
BaseRepresentation
bin1100001110000…
…0110110101100
310120102220102101
43003200312230
5101110041102
65030304444
71161432433
oct303406654
9116386371
1051252652
1126a26970
12151b8124
13a806619
146b4211a
154775e87
hex30e0dac

51252652 has 48 divisors (see below), whose sum is σ = 104186880. Its totient is φ = 21816000.

The previous prime is 51252647. The next prime is 51252673. The reversal of 51252652 is 25625215.

51252652 is nontrivially palindromic in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 51252652.

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, 84133 + ... + 84739.

It is an arithmetic number, because the mean of its divisors is an integer number (2170560).

Almost surely, 251252652 is an apocalyptic number.

It is an amenable number.

51252652 is an abundant number, since it is smaller than the sum of its proper divisors (52934228).

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

51252652 is a wasteful number, since it uses less digits than its factorization.

51252652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742 (or 740 counting only the distinct ones).

The product of its digits is 6000, while the sum is 28.

The square root of 51252652 is about 7159.0957529565. The cubic root of 51252652 is about 371.4543489858.

Adding to 51252652 its reverse (25625215), we get a palindrome (76877867).

It can be divided in two parts, 512526 and 52, that added together give a triangular number (512578 = T1012).

The spelling of 51252652 in words is "fifty-one million, two hundred fifty-two thousand, six hundred fifty-two".

Divisors: 1 2 4 11 19 22 38 44 76 101 202 209 404 418 607 836 1111 1214 1919 2222 2428 3838 4444 6677 7676 11533 13354 21109 23066 26708 42218 46132 61307 84436 122614 126863 245228 253726 507452 674377 1164833 1348754 2329666 2697508 4659332 12813163 25626326 51252652