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16122955 = 53224591
BaseRepresentation
bin111101100000…
…010001001011
31010100010112111
4331200101023
513111413310
61333323151
7254020462
oct75402113
933303474
1016122955
119112462
1254964b7
133456814
1421d99d9
15163728a
hexf6044b

16122955 has 4 divisors (see below), whose sum is σ = 19347552. Its totient is φ = 12898360.

The previous prime is 16122949. The next prime is 16122983. The reversal of 16122955 is 55922161.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 16122955 - 25 = 16122923 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

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, 1612291 + ... + 1612300.

It is an arithmetic number, because the mean of its divisors is an integer number (4836888).

Almost surely, 216122955 is an apocalyptic number.

16122955 is a deficient number, since it is larger than the sum of its proper divisors (3224597).

16122955 is an equidigital number, since it uses as much as digits as its factorization.

16122955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3224596.

The product of its digits is 5400, while the sum is 31.

The square root of 16122955 is about 4015.3399607007. The cubic root of 16122955 is about 252.6280368846.

The spelling of 16122955 in words is "sixteen million, one hundred twenty-two thousand, nine hundred fifty-five".

Divisors: 1 5 3224591 16122955