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16122957 = 35374319
BaseRepresentation
bin111101100000…
…010001001101
31010100010112120
4331200101031
513111413312
61333323153
7254020464
oct75402115
933303476
1016122957
119112464
1254964b9
133456816
1421d99db
15163728c
hexf6044d

16122957 has 4 divisors (see below), whose sum is σ = 21497280. Its totient is φ = 10748636.

The previous prime is 16122949. The next prime is 16122983. The reversal of 16122957 is 75922161.

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 16122957 - 23 = 16122949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16122157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2687157 + ... + 2687162.

It is an arithmetic number, because the mean of its divisors is an integer number (5374320).

Almost surely, 216122957 is an apocalyptic number.

It is an amenable number.

16122957 is a deficient number, since it is larger than the sum of its proper divisors (5374323).

16122957 is an equidigital number, since it uses as much as digits as its factorization.

16122957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5374322.

The product of its digits is 7560, while the sum is 33.

The square root of 16122957 is about 4015.3402097456. The cubic root of 16122957 is about 252.6280473305.

The spelling of 16122957 in words is "sixteen million, one hundred twenty-two thousand, nine hundred fifty-seven".

Divisors: 1 3 5374319 16122957