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31422134304 = 2534114312557
BaseRepresentation
bin11101010000111001…
…111011100000100000
310000002212021210220000
4131100321323200200
51003323031244204
622233553220000
72161445510001
oct352071734040
9100085253800
1031422134304
1112364a80640
12610b261600
132c69bc35a2
14174127d1a8
15c3d8e2039
hex750e7b820

31422134304 has 240 divisors, whose sum is σ = 101086102656. Its totient is φ = 9496051200.

The previous prime is 31422134269. The next prime is 31422134309. The reversal of 31422134304 is 40343122413.

31422134304 is a `hidden beast` number, since 3 + 1 + 4 + 221 + 3 + 430 + 4 = 666.

It is a super-2 number, since 2×314221343042 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (31422134309) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 12287394 + ... + 12289950.

Almost surely, 231422134304 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 31422134304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50543051328).

31422134304 is an abundant number, since it is smaller than the sum of its proper divisors (69663968352).

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

31422134304 is a wasteful number, since it uses less digits than its factorization.

31422134304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3021 (or 3004 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 31422134304 its reverse (40343122413), we get a palindrome (71765256717).

The spelling of 31422134304 in words is "thirty-one billion, four hundred twenty-two million, one hundred thirty-four thousand, three hundred four".