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16214022631 = 31152135121
BaseRepresentation
bin11110001100110111…
…00101100111100111
31112211222112200122201
433012123211213213
5231201242211011
611240522435331
71112540630002
oct170633454747
945758480581
1016214022631
116970436204
123186062b47
1316b5210041
14adb564539
1564d6becc1
hex3c66e59e7

16214022631 has 4 divisors (see below), whose sum is σ = 16266158064. Its totient is φ = 16161887200.

The previous prime is 16214022619. The next prime is 16214022653. The reversal of 16214022631 is 13622041261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13622041261 = 43177315493.

It is a cyclic number.

It is not a de Polignac number, because 16214022631 - 223 = 16205634023 is a prime.

It is a super-2 number, since 2×162140226312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16214022631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16214022611) 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, 26067250 + ... + 26067871.

It is an arithmetic number, because the mean of its divisors is an integer number (4066539516).

Almost surely, 216214022631 is an apocalyptic number.

16214022631 is a deficient number, since it is larger than the sum of its proper divisors (52135433).

16214022631 is an equidigital number, since it uses as much as digits as its factorization.

16214022631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52135432.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 16214022631 its reverse (13622041261), we get a palindrome (29836063892).

The spelling of 16214022631 in words is "sixteen billion, two hundred fourteen million, twenty-two thousand, six hundred thirty-one".

Divisors: 1 311 52135121 16214022631