Search a number
-
+
3091393075680 = 253357133193179
BaseRepresentation
bin101100111111000101011…
…000101101100111100000
3101221112102111110120011000
4230333011120231213200
5401122133111410210
610324055534152000
7436226413403550
oct54770530554740
911845374416130
103091393075680
11a92063887188
1241b171352600
13195695148000
14a98a4c23160
1555633048ac0
hex2cfc562d9e0

3091393075680 has 3072 divisors, whose sum is σ = 14739701760000. Its totient is φ = 590418616320.

The previous prime is 3091393075663. The next prime is 3091393075717. The reversal of 3091393075680 is 865703931903.

3091393075680 is a `hidden beast` number, since 30 + 9 + 13 + 9 + 30 + 7 + 568 + 0 = 666.

It is a super-2 number, since 2×30913930756802 (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 511 ways as a sum of consecutive naturals, for example, 39131557881 + ... + 39131557959.

It is an arithmetic number, because the mean of its divisors is an integer number (4798080000).

Almost surely, 23091393075680 is an apocalyptic number.

3091393075680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3091393075680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7369850880000).

3091393075680 is an abundant number, since it is smaller than the sum of its proper divisors (11648308684320).

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

3091393075680 is a wasteful number, since it uses less digits than its factorization.

3091393075680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 3674160, while the sum is 54.

The spelling of 3091393075680 in words is "three trillion, ninety-one billion, three hundred ninety-three million, seventy-five thousand, six hundred eighty".