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52803621432 = 23325313837427
BaseRepresentation
bin110001001011010101…
…110101001000111000
312001021222022220012200
4301023111311020320
51331120211341212
640131352510200
73546344243112
oct611325651070
9161258286180
1052803621432
11204372a4361
12a2979ab360
134c96867413
1427acc183b2
151590a976dc
hexc4b575238

52803621432 has 48 divisors (see below), whose sum is σ = 145708116840. Its totient is φ = 17269107648.

The previous prime is 52803621419. The next prime is 52803621439. The reversal of 52803621432 is 23412630825.

52803621432 is a `hidden beast` number, since 5 + 28 + 0 + 3 + 621 + 4 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52803621439) 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 11 ways as a sum of consecutive naturals, for example, 6914898 + ... + 6922529.

Almost surely, 252803621432 is an apocalyptic number.

It is an amenable number.

52803621432 is an abundant number, since it is smaller than the sum of its proper divisors (92904495408).

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

52803621432 is a wasteful number, since it uses less digits than its factorization.

52803621432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13837492 (or 13837485 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 52803621432 in words is "fifty-two billion, eight hundred three million, six hundred twenty-one thousand, four hundred thirty-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 53 72 106 159 212 318 424 477 636 954 1272 1908 3816 13837427 27674854 41512281 55349708 83024562 110699416 124536843 166049124 249073686 332098248 498147372 733383631 996294744 1466767262 2200150893 2933534524 4400301786 5867069048 6600452679 8800603572 13200905358 17601207144 26401810716 52803621432