Search a number
-
+
31442411000 = 235371113101311
BaseRepresentation
bin11101010010000111…
…010001110111111000
310000011021102222021202
4131102013101313320
51003343224123000
622235555553332
72162113040510
oct352207216770
9100137388252
1031442411000
111237546a840
126115bbb848
132c71172930
141743c3a840
15c40599dd5
hex7521d1df8

31442411000 has 512 divisors, whose sum is σ = 100085207040. Its totient is φ = 8928000000.

The previous prime is 31442410991. The next prime is 31442411053. The reversal of 31442411000 is 11424413.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 101100845 + ... + 101101155.

It is an arithmetic number, because the mean of its divisors is an integer number (195478920).

Almost surely, 231442411000 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 31442411000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50042603520).

31442411000 is an abundant number, since it is smaller than the sum of its proper divisors (68642796040).

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

31442411000 is a wasteful number, since it uses less digits than its factorization.

31442411000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464 (or 450 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 31442411000 its reverse (11424413), we get a palindrome (31453835413).

The spelling of 31442411000 in words is "thirty-one billion, four hundred forty-two million, four hundred eleven thousand".