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16120018 = 2191912221
BaseRepresentation
bin111101011111…
…100011010010
31010022222111201
4331133203102
513111320033
61333301414
7254006065
oct75374322
933288451
1016120018
119110232
12549486a
133455395
1421d88dc
15163647d
hexf5f8d2

16120018 has 16 divisors (see below), whose sum is σ = 25597440. Its totient is φ = 7592400.

The previous prime is 16119989. The next prime is 16120051. The reversal of 16120018 is 81002161.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 16119977 and 16120004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6148 + ... + 8368.

It is an arithmetic number, because the mean of its divisors is an integer number (1599840).

Almost surely, 216120018 is an apocalyptic number.

16120018 is a deficient number, since it is larger than the sum of its proper divisors (9477422).

16120018 is a wasteful number, since it uses less digits than its factorization.

16120018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2433.

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 16120018 is about 4014.9742215860. The cubic root of 16120018 is about 252.6126961566.

Adding to 16120018 its reverse (81002161), we get a palindrome (97122179).

The spelling of 16120018 in words is "sixteen million, one hundred twenty thousand, eighteen".

Divisors: 1 2 19 38 191 382 2221 3629 4442 7258 42199 84398 424211 848422 8060009 16120018