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31422011315 = 523383713407
BaseRepresentation
bin11101010000111001…
…011101011110110011
310000002212001120011212
4131100321131132303
51003323013330230
622233550430335
72161444455302
oct352071353663
9100085046155
1031422011315
11123649a71a2
12610b2023ab
132c69b7c606
14174124a439
15c3d8ba895
hex750e5d7b3

31422011315 has 16 divisors (see below), whose sum is σ = 39448608768. Its totient is φ = 23981856096.

The previous prime is 31422011293. The next prime is 31422011329. The reversal of 31422011315 is 51311022413.

It is a cyclic number.

It is not a de Polignac number, because 31422011315 - 218 = 31421749171 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 312659 + ... + 400748.

It is an arithmetic number, because the mean of its divisors is an integer number (2465538048).

Almost surely, 231422011315 is an apocalyptic number.

31422011315 is a deficient number, since it is larger than the sum of its proper divisors (8026597453).

31422011315 is a wasteful number, since it uses less digits than its factorization.

31422011315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713818.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 31422011315 its reverse (51311022413), we get a palindrome (82733033728).

The spelling of 31422011315 in words is "thirty-one billion, four hundred twenty-two million, eleven thousand, three hundred fifteen".

Divisors: 1 5 23 115 383 1915 8809 44045 713407 3567035 16408361 82041805 273234881 1366174405 6284402263 31422011315