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18140710 = 257337769
BaseRepresentation
bin100010100110…
…0111000100110
31021010122101011
41011030320212
514121000320
61444452434
7310123240
oct105147046
937118334
1018140710
11a270425
1260aa11a
1339b2063
1425a3090
1518d505a
hex114ce26

18140710 has 32 divisors (see below), whose sum is σ = 37477440. Its totient is φ = 6193152.

The previous prime is 18140701. The next prime is 18140723. The reversal of 18140710 is 1704181.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 23206 + ... + 23974.

It is an arithmetic number, because the mean of its divisors is an integer number (1171170).

Almost surely, 218140710 is an apocalyptic number.

18140710 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18140710 is an abundant number, since it is smaller than the sum of its proper divisors (19336730).

18140710 is a wasteful number, since it uses less digits than its factorization.

18140710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120.

The product of its (nonzero) digits is 224, while the sum is 22.

The square root of 18140710 is about 4259.1912377821. The cubic root of 18140710 is about 262.7552649178.

Adding to 18140710 its reverse (1704181), we get a palindrome (19844891).

The spelling of 18140710 in words is "eighteen million, one hundred forty thousand, seven hundred ten".

Divisors: 1 2 5 7 10 14 35 70 337 674 769 1538 1685 2359 3370 3845 4718 5383 7690 10766 11795 23590 26915 53830 259153 518306 1295765 1814071 2591530 3628142 9070355 18140710