Search a number
-
+
31412231004 = 223711193794721
BaseRepresentation
bin11101010000010100…
…001001101101011100
310000002011122200010010
4131100110021231130
51003313012343004
622233001043220
72161265362260
oct352024115534
9100064580103
1031412231004
111235a4270a0
126107a86510
132c67b36a4b
14173dc220a0
15c3cad7a89
hex750509b5c

31412231004 has 192 divisors, whose sum is σ = 96464793600. Its totient is φ = 7707571200.

The previous prime is 31412230961. The next prime is 31412231021. The reversal of 31412231004 is 40013221413.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6651364 + ... + 6656084.

It is an arithmetic number, because the mean of its divisors is an integer number (502420800).

Almost surely, 231412231004 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 31412231004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48232396800).

31412231004 is an abundant number, since it is smaller than the sum of its proper divisors (65052562596).

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

31412231004 is a wasteful number, since it uses less digits than its factorization.

31412231004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5144 (or 5142 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 31412231004 its reverse (40013221413), we get a palindrome (71425452417).

The spelling of 31412231004 in words is "thirty-one billion, four hundred twelve million, two hundred thirty-one thousand, four".