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16312938 = 232718823
BaseRepresentation
bin111110001110…
…101001101010
31010200210010220
4332032221222
513134003223
61341350510
7255441405
oct76165152
933623126
1016312938
119232174
125568436
1334c2135
142248d3c
1516736e3
hexf8ea6a

16312938 has 8 divisors (see below), whose sum is σ = 32625888. Its totient is φ = 5437644.

The previous prime is 16312937. The next prime is 16312949. The reversal of 16312938 is 83921361.

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

16312938 is an admirable number.

It is a super-2 number, since 2×163129382 = 532223892383688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16312899 and 16312908.

It is not an unprimeable number, because it can be changed into a prime (16312931) 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, 1359406 + ... + 1359417.

It is an arithmetic number, because the mean of its divisors is an integer number (4078236).

Almost surely, 216312938 is an apocalyptic number.

16312938 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.

16312938 is a wasteful number, since it uses less digits than its factorization.

16312938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2718828.

The product of its digits is 7776, while the sum is 33.

The square root of 16312938 is about 4038.9278280257. The cubic root of 16312938 is about 253.6164359743.

The spelling of 16312938 in words is "sixteen million, three hundred twelve thousand, nine hundred thirty-eight".

Divisors: 1 2 3 6 2718823 5437646 8156469 16312938