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631483887852 = 2232397334313217
BaseRepresentation
bin10010011000001110101…
…11110111000011101100
32020100222012100021022200
421030013113313003230
540321234333402402
61202033311141500
763423521324346
oct11140727670354
92210865307280
10631483887852
112238a1212524
12a2476814890
1347719592c4c
14227c77da296
151165ddac21c
hex93075f70ec

631483887852 has 72 divisors (see below), whose sum is σ = 1600871528256. Its totient is φ = 209885727744.

The previous prime is 631483887829. The next prime is 631483887857. The reversal of 631483887852 is 258788384136.

631483887852 is a `hidden beast` number, since 6 + 3 + 1 + 483 + 88 + 78 + 5 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 631483887852.

It is not an unprimeable number, because it can be changed into a prime (631483887857) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47771548 + ... + 47784764.

Almost surely, 2631483887852 is an apocalyptic number.

It is an amenable number.

631483887852 is an abundant number, since it is smaller than the sum of its proper divisors (969387640404).

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

631483887852 is a wasteful number, since it uses less digits than its factorization.

631483887852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16967 (or 16962 counting only the distinct ones).

The product of its digits is 61931520, while the sum is 63.

The spelling of 631483887852 in words is "six hundred thirty-one billion, four hundred eighty-three million, eight hundred eighty-seven thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 36 397 794 1191 1588 2382 3343 3573 4764 6686 7146 10029 13217 13372 14292 20058 26434 30087 39651 40116 52868 60174 79302 118953 120348 158604 237906 475812 1327171 2654342 3981513 5247149 5308684 7963026 10494298 11944539 15741447 15926052 20988596 23889078 31482894 44184431 47224341 47778156 62965788 88368862 94448682 132553293 176737724 188897364 265106586 397659879 530213172 795319758 1590639516 17541219107 35082438214 52623657321 70164876428 105247314642 157870971963 210494629284 315741943926 631483887852