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140130220 = 22557712143
BaseRepresentation
bin10000101101000…
…11011110101100
3100202200100112011
420112203132230
5241333131340
621523251004
73321041626
oct1026433654
9322610464
10140130220
11721109aa
123ab19a64
13230546b9
1414879c16
15c4800ea
hex85a37ac

140130220 has 24 divisors (see below), whose sum is σ = 294807744. Its totient is φ = 55950336.

The previous prime is 140130181. The next prime is 140130223. The reversal of 140130220 is 22031041.

140130220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 140130220.

It is not an unprimeable number, because it can be changed into a prime (140130223) 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, 5469 + ... + 17611.

It is an arithmetic number, because the mean of its divisors is an integer number (12283656).

Almost surely, 2140130220 is an apocalyptic number.

140130220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140130220 is an abundant number, since it is smaller than the sum of its proper divisors (154677524).

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

140130220 is a wasteful number, since it uses less digits than its factorization.

140130220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12729 (or 12727 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 140130220 is about 11837.6610865491. The cubic root of 140130220 is about 519.4103523390.

Adding to 140130220 its reverse (22031041), we get a palindrome (162161261).

The spelling of 140130220 in words is "one hundred forty million, one hundred thirty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 577 1154 2308 2885 5770 11540 12143 24286 48572 60715 121430 242860 7006511 14013022 28026044 35032555 70065110 140130220