Search a number
-
+
631006432252 = 22728180199089
BaseRepresentation
bin10010010111010101110…
…10100000101111111100
32020022201220221000100221
421023222322200233330
540314300121313002
61201514053431124
763405633114460
oct11135272405774
92208656830327
10631006432252
11223676754019
12a236293b4a4
13476716a2441
14227802324a0
1511631ee8c37
hex92eaea0bfc

631006432252 has 24 divisors (see below), whose sum is σ = 1266504029280. Its totient is φ = 269468935680.

The previous prime is 631006432219. The next prime is 631006432421. The reversal of 631006432252 is 252234600136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40091677 + ... + 40107412.

It is an arithmetic number, because the mean of its divisors is an integer number (52771001220).

Almost surely, 2631006432252 is an apocalyptic number.

It is an amenable number.

631006432252 is an abundant number, since it is smaller than the sum of its proper divisors (635497597028).

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

631006432252 is a wasteful number, since it uses less digits than its factorization.

631006432252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80199381 (or 80199379 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 34.

The spelling of 631006432252 in words is "six hundred thirty-one billion, six million, four hundred thirty-two thousand, two hundred fifty-two".

Divisors: 1 2 4 7 14 28 281 562 1124 1967 3934 7868 80199089 160398178 320796356 561393623 1122787246 2245574492 22535944009 45071888018 90143776036 157751608063 315503216126 631006432252