Search a number
-
+
31013302320000 = 27325471113371163
BaseRepresentation
bin1110000110100110110001…
…10111100011101110000000
311001210211202100210001111200
413003103120313203232000
513031110220343220000
6145543151524341200
76350431354114260
oct703233067435600
9131724670701450
1031013302320000
11997773870a940
12358a704244800
13143c70760a550
147930a23777a0
1538bad92ad500
hex1c34d8de3b80

31013302320000 has 3840 divisors, whose sum is σ = 153911266629120. Its totient is φ = 5782855680000.

The previous prime is 31013302319983. The next prime is 31013302320023. The reversal of 31013302320000 is 2320331013.

31013302320000 is a `hidden beast` number, since 3 + 10 + 1 + 330 + 2 + 320 + 0 + 0 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 26666639419 + ... + 26666640581.

It is an arithmetic number, because the mean of its divisors is an integer number (40081059018).

Almost surely, 231013302320000 is an apocalyptic number.

31013302320000 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 31013302320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76955633314560).

31013302320000 is an abundant number, since it is smaller than the sum of its proper divisors (122897964309120).

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

31013302320000 is a wasteful number, since it uses less digits than its factorization.

31013302320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271 (or 1241 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 31013302320000 its reverse (2320331013), we get a palindrome (31015622651013).

The spelling of 31013302320000 in words is "thirty-one trillion, thirteen billion, three hundred two million, three hundred twenty thousand".