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16230977 = 72318711
BaseRepresentation
bin111101111010…
…101001000001
31010112121201022
4331322221001
513123342402
61335515225
7254650430
oct75725101
933477638
1016230977
119186634
125528b15
133493a39
142227117
1516592a2
hexf7aa41

16230977 has 4 divisors (see below), whose sum is σ = 18549696. Its totient is φ = 13912260.

The previous prime is 16230961. The next prime is 16230979. The reversal of 16230977 is 77903261.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16230977 - 24 = 16230961 is a prime.

It is a super-2 number, since 2×162309772 = 526889228749058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16230979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1159349 + ... + 1159362.

It is an arithmetic number, because the mean of its divisors is an integer number (4637424).

Almost surely, 216230977 is an apocalyptic number.

It is an amenable number.

16230977 is a deficient number, since it is larger than the sum of its proper divisors (2318719).

16230977 is an equidigital number, since it uses as much as digits as its factorization.

16230977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2318718.

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 16230977 is about 4028.7686704501. The cubic root of 16230977 is about 253.1909747654.

The spelling of 16230977 in words is "sixteen million, two hundred thirty thousand, nine hundred seventy-seven".

Divisors: 1 7 2318711 16230977