Search a number
-
+
31925134446 = 2319280045039
BaseRepresentation
bin11101101110111000…
…101110010001101110
310001101220202212100220
4131232320232101232
51010340313300241
622355522232210
72210064110502
oct355670562156
9101356685326
1031925134446
11125a29a7037
12622b7b5666
13301a1890ca
14178bdb6302
15c6cb4e166
hex76ee2e46e

31925134446 has 16 divisors (see below), whose sum is σ = 67210809600. Its totient is φ = 10081621368.

The previous prime is 31925134391. The next prime is 31925134459. The reversal of 31925134446 is 64443152913.

It is a junction number, because it is equal to n+sod(n) for n = 31925134398 and 31925134407.

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, 140022406 + ... + 140022633.

It is an arithmetic number, because the mean of its divisors is an integer number (4200675600).

Almost surely, 231925134446 is an apocalyptic number.

31925134446 is an abundant number, since it is smaller than the sum of its proper divisors (35285675154).

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

31925134446 is a wasteful number, since it uses less digits than its factorization.

31925134446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280045063.

The product of its digits is 311040, while the sum is 42.

The spelling of 31925134446 in words is "thirty-one billion, nine hundred twenty-five million, one hundred thirty-four thousand, four hundred forty-six".

Divisors: 1 2 3 6 19 38 57 114 280045039 560090078 840135117 1680270234 5320855741 10641711482 15962567223 31925134446