Search a number
-
+
31282494653980 = 2253863404898973
BaseRepresentation
bin1110001110011100001011…
…11110110100011000011100
311002202120120211122111101101
413013032011332310120130
513100013022112411410
6150310551334322444
76406041244155433
oct707160576643034
9132676524574341
1031282494653980
119a70916776729
1236129101b9424
13145bc07938a7b
147a211baac11a
15393ae1ea4d3a
hex1c7385fb461c

31282494653980 has 24 divisors (see below), whose sum is σ = 65710244692512. Its totient is φ = 12509758638912.

The previous prime is 31282494653929. The next prime is 31282494654011. The reversal of 31282494653980 is 8935649428213.

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, 202372227 + ... + 202526746.

It is an arithmetic number, because the mean of its divisors is an integer number (2737926862188).

Almost surely, 231282494653980 is an apocalyptic number.

It is an amenable number.

31282494653980 is an abundant number, since it is smaller than the sum of its proper divisors (34427750038532).

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

31282494653980 is a wasteful number, since it uses less digits than its factorization.

31282494653980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404902845 (or 404902843 counting only the distinct ones).

The product of its (nonzero) digits is 89579520, while the sum is 64.

The spelling of 31282494653980 in words is "thirty-one trillion, two hundred eighty-two billion, four hundred ninety-four million, six hundred fifty-three thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 3863 7726 15452 19315 38630 77260 404898973 809797946 1619595892 2024494865 4048989730 8097979460 1564124732699 3128249465398 6256498930796 7820623663495 15641247326990 31282494653980