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51830652 = 22343100447
BaseRepresentation
bin1100010110110…
…1111101111100
310121112021021210
43011231331330
5101232040102
65050524420
71166360526
oct305557574
9117467253
1051830652
1127291155
1215436710
13a979733
146c52a16
15483c36c
hex316df7c

51830652 has 24 divisors (see below), whose sum is σ = 123751936. Its totient is φ = 16874928.

The previous prime is 51830633. The next prime is 51830659. The reversal of 51830652 is 25603815.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51830659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49708 + ... + 50739.

Almost surely, 251830652 is an apocalyptic number.

It is an amenable number.

51830652 is an abundant number, since it is smaller than the sum of its proper divisors (71921284).

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

51830652 is a wasteful number, since it uses less digits than its factorization.

51830652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100497 (or 100495 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 51830652 is about 7199.3508040656. The cubic root of 51830652 is about 372.8454870142.

The spelling of 51830652 in words is "fifty-one million, eight hundred thirty thousand, six hundred fifty-two".

Divisors: 1 2 3 4 6 12 43 86 129 172 258 516 100447 200894 301341 401788 602682 1205364 4319221 8638442 12957663 17276884 25915326 51830652