Search a number
-
+
18140960 = 255113381
BaseRepresentation
bin100010100110…
…0111100100000
31021010122201102
41011030330200
514121002320
61444453532
7310124045
oct105147440
937118642
1018140960
11a270632
1260aa2a8
1339b21c6
1425a31cc
1518d5175
hex114cf20

18140960 has 24 divisors (see below), whose sum is σ = 42858396. Its totient is φ = 7256320.

The previous prime is 18140957. The next prime is 18140963. The reversal of 18140960 is 6904181.

It is an interprime number because it is at equal distance from previous prime (18140957) and next prime (18140963).

It can be written as a sum of positive squares in 2 ways, for example, as 17272336 + 868624 = 4156^2 + 932^2 .

It is not an unprimeable number, because it can be changed into a prime (18140963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56531 + ... + 56850.

Almost surely, 218140960 is an apocalyptic number.

18140960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18140960 is an abundant number, since it is smaller than the sum of its proper divisors (24717436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18140960 is a wasteful number, since it uses less digits than its factorization.

18140960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113396 (or 113388 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 18140960 is about 4259.2205859758. The cubic root of 18140960 is about 262.7564719362.

The spelling of 18140960 in words is "eighteen million, one hundred forty thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 113381 226762 453524 566905 907048 1133810 1814096 2267620 3628192 4535240 9070480 18140960