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18486010 = 252577193
BaseRepresentation
bin100011010000…
…1001011111010
31021210012001001
41012201023322
514213023020
61500115214
7313062034
oct106411372
937705031
1018486010
11a4868a4
126235b0a
133aa328a
142652c54
15195250a
hex11a12fa

18486010 has 16 divisors (see below), whose sum is σ = 33408936. Its totient is φ = 7364608.

The previous prime is 18485981. The next prime is 18486011. The reversal of 18486010 is 1068481.

It can be written as a sum of positive squares in 4 ways, for example, as 15673681 + 2812329 = 3959^2 + 1677^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18486010.

It is not an unprimeable number, because it can be changed into a prime (18486011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1027 + ... + 6166.

Almost surely, 218486010 is an apocalyptic number.

18486010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18486010 is a deficient number, since it is larger than the sum of its proper divisors (14922926).

18486010 is a wasteful number, since it uses less digits than its factorization.

18486010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7457.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 18486010 is about 4299.5360214795. The cubic root of 18486010 is about 264.4119391479.

The spelling of 18486010 in words is "eighteen million, four hundred eighty-six thousand, ten".

Divisors: 1 2 5 10 257 514 1285 2570 7193 14386 35965 71930 1848601 3697202 9243005 18486010