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16120055 = 574310711
BaseRepresentation
bin111101011111…
…100011110111
31010022222120002
4331133203313
513111320210
61333301515
7254006150
oct75374367
933288502
1016120055
119110266
12549489b
1334553c3
1421d8927
1516364a5
hexf5f8f7

16120055 has 16 divisors (see below), whose sum is σ = 22623744. Its totient is φ = 10795680.

The previous prime is 16120051. The next prime is 16120057. The reversal of 16120055 is 55002161.

It is not a de Polignac number, because 16120055 - 22 = 16120051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16120051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3851 + ... + 6860.

It is an arithmetic number, because the mean of its divisors is an integer number (1413984).

Almost surely, 216120055 is an apocalyptic number.

16120055 is a deficient number, since it is larger than the sum of its proper divisors (6503689).

16120055 is a wasteful number, since it uses less digits than its factorization.

16120055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10766.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 16120055 is about 4014.9788293340. The cubic root of 16120055 is about 252.6128894290.

The spelling of 16120055 in words is "sixteen million, one hundred twenty thousand, fifty-five".

Divisors: 1 5 7 35 43 215 301 1505 10711 53555 74977 374885 460573 2302865 3224011 16120055