Search a number
-
+
6115988454400 = 210521129748921
BaseRepresentation
bin101100011111111110101…
…0100011011110000000000
3210122200102202021112100201
41120333331110123300000
51300201021021020100
621001351334054544
71200602616052306
oct130777524336000
923580382245321
106115988454400
111a4885a047a30
128293a01aa454
13354973412536
14172030458276
15a9156b8736a
hex58ffd51bc00

6115988454400 has 264 divisors, whose sum is σ = 17108763607440. Its totient is φ = 2147303424000.

The previous prime is 6115988454379. The next prime is 6115988454413. The reversal of 6115988454400 is 44548895116.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7791940 + ... + 8540860.

Almost surely, 26115988454400 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6115988454400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8554381803720).

6115988454400 is an abundant number, since it is smaller than the sum of its proper divisors (10992775153040).

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

6115988454400 is a wasteful number, since it uses less digits than its factorization.

6115988454400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748991 (or 748968 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 55.

The spelling of 6115988454400 in words is "six trillion, one hundred fifteen billion, nine hundred eighty-eight million, four hundred fifty-four thousand, four hundred".