Search a number
-
+
31330130120010 = 2335317199752879
BaseRepresentation
bin1110001111110100111010…
…10001101100110101001010
311002221010112122011220012000
413013322131101230311022
513101303101302320020
6150344510231531430
76412345555020231
oct707723521546512
9132833478156160
1031330130120010
119a8a040750377
12361bba5229b76
131463559859a67
147a455a371b18
15394e7de7c090
hex1c7e9d46cd4a

31330130120010 has 256 divisors, whose sum is σ = 87546131251200. Its totient is φ = 7963172985600.

The previous prime is 31330130119999. The next prime is 31330130120021. The reversal of 31330130120010 is 1002103103313.

It is a happy number.

31330130120010 is a `hidden beast` number, since 3 + 1 + 330 + 1 + 301 + 20 + 0 + 10 = 666.

It is an interprime number because it is at equal distance from previous prime (31330130119999) and next prime (31330130120021).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 592460751 + ... + 592513629.

It is an arithmetic number, because the mean of its divisors is an integer number (341977075200).

Almost surely, 231330130120010 is an apocalyptic number.

31330130120010 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 31330130120010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43773065625600).

31330130120010 is an abundant number, since it is smaller than the sum of its proper divisors (56216001131190).

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

31330130120010 is a wasteful number, since it uses less digits than its factorization.

31330130120010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53994 (or 53988 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 31330130120010 its reverse (1002103103313), we get a palindrome (32332233223323).

The spelling of 31330130120010 in words is "thirty-one trillion, three hundred thirty billion, one hundred thirty million, one hundred twenty thousand, ten".