Search a number
-
+
31231231230976 = 210753419196201
BaseRepresentation
bin1110001100111100101100…
…11100011000010000000000
311002120200021012110210012221
413012132112130120100000
513043143030143342401
6150231232441300424
76402245011232620
oct706362634302000
9132520235423187
1031231231230976
119a510aa919237
1236049a4194714
1314571281c988a
1479d85765c880
153925e17477a1
hex1c6796718400

31231231230976 has 176 divisors, whose sum is σ = 72870929631360. Its totient is φ = 13100861030400.

The previous prime is 31231231230973. The next prime is 31231231231019. The reversal of 31231231230976 is 67903213213213.

It is not an unprimeable number, because it can be changed into a prime (31231231230973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159081676 + ... + 159277876.

Almost surely, 231231231230976 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 31231231230976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36435464815680).

31231231230976 is an abundant number, since it is smaller than the sum of its proper divisors (41639698400384).

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

31231231230976 is a wasteful number, since it uses less digits than its factorization.

31231231230976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196700 (or 196682 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 43.

The spelling of 31231231230976 in words is "thirty-one trillion, two hundred thirty-one billion, two hundred thirty-one million, two hundred thirty thousand, nine hundred seventy-six".