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31420330122 = 235236721687
BaseRepresentation
bin11101010000110011…
…000011000010001010
310000002201220011000110
4131100303003002022
51003322101030442
622233450415150
72161424253666
oct352063030212
9100081804013
1031420330122
1112363a59085
12610a7314b6
132c6971131c
141740d2d8a6
15c3d68769c
hex750cc308a

31420330122 has 8 divisors (see below), whose sum is σ = 62840660256. Its totient is φ = 10473443372.

The previous prime is 31420330103. The next prime is 31420330127. The reversal of 31420330122 is 22103302413.

It is a sphenic number, since it is the product of 3 distinct primes.

31420330122 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (31420330127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2618360838 + ... + 2618360849.

It is an arithmetic number, because the mean of its divisors is an integer number (7855082532).

Almost surely, 231420330122 is an apocalyptic number.

31420330122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

31420330122 is a wasteful number, since it uses less digits than its factorization.

31420330122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5236721692.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 31420330122 its reverse (22103302413), we get a palindrome (53523632535).

The spelling of 31420330122 in words is "thirty-one billion, four hundred twenty million, three hundred thirty thousand, one hundred twenty-two".

Divisors: 1 2 3 6 5236721687 10473443374 15710165061 31420330122