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16431970958 = 2135023125821
BaseRepresentation
bin11110100110110101…
…11111101010001110
31120102011122121112222
433103122333222032
5232123041032313
611314310055342
71121125306604
oct172332775216
946364577488
1016431970958
116a72467a97
12322704a552
13171b40c950
14b1c499874
156628c2208
hex3d36bfa8e

16431970958 has 16 divisors (see below), whose sum is σ = 26549448576. Its totient is φ = 7582416480.

The previous prime is 16431970921. The next prime is 16431970967. The reversal of 16431970958 is 85907913461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67688 + ... + 193508.

It is an arithmetic number, because the mean of its divisors is an integer number (1659340536).

Almost surely, 216431970958 is an apocalyptic number.

16431970958 is a deficient number, since it is larger than the sum of its proper divisors (10117477618).

16431970958 is a wasteful number, since it uses less digits than its factorization.

16431970958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130859.

The product of its (nonzero) digits is 1632960, while the sum is 53.

The spelling of 16431970958 in words is "sixteen billion, four hundred thirty-one million, nine hundred seventy thousand, nine hundred fifty-eight".

Divisors: 1 2 13 26 5023 10046 65299 125821 130598 251642 1635673 3271346 631998883 1263997766 8215985479 16431970958