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18070834 = 213965003
BaseRepresentation
bin100010011101…
…1110100110010
31021000002112011
41010323310302
514111231314
61443153134
7306412435
oct104736462
937002464
1018070834
11a222981
1260757aa
133989302
14258581c
1518be4c4
hex113bd32

18070834 has 8 divisors (see below), whose sum is σ = 27301680. Its totient is φ = 8970276.

The previous prime is 18070831. The next prime is 18070841. The reversal of 18070834 is 43807081.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 18070796 and 18070805.

It is not an unprimeable number, because it can be changed into a prime (18070831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32224 + ... + 32779.

It is an arithmetic number, because the mean of its divisors is an integer number (3412710).

Almost surely, 218070834 is an apocalyptic number.

18070834 is a deficient number, since it is larger than the sum of its proper divisors (9230846).

18070834 is a wasteful number, since it uses less digits than its factorization.

18070834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65144.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 18070834 is about 4250.9803575175. The cubic root of 18070834 is about 262.4174627885.

The spelling of 18070834 in words is "eighteen million, seventy thousand, eight hundred thirty-four".

Divisors: 1 2 139 278 65003 130006 9035417 18070834