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140013140 = 2257000657
BaseRepresentation
bin10000101100001…
…10111001010100
3100202110101220212
420112012321110
5241320410030
621520544552
73320043401
oct1026067124
9322411825
10140013140
1172040a43
123aa82158
1323013317
14148492a8
15c45a595
hex8586e54

140013140 has 12 divisors (see below), whose sum is σ = 294027636. Its totient is φ = 56005248.

The previous prime is 140013127. The next prime is 140013151. The reversal of 140013140 is 41310041.

It is a happy number.

140013140 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 54228496 + 85784644 = 7364^2 + 9262^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3500309 + ... + 3500348.

It is an arithmetic number, because the mean of its divisors is an integer number (24502303).

Almost surely, 2140013140 is an apocalyptic number.

140013140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140013140 is an abundant number, since it is smaller than the sum of its proper divisors (154014496).

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

140013140 is a wasteful number, since it uses less digits than its factorization.

140013140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7000666 (or 7000664 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 140013140 is about 11832.7148195163. The cubic root of 140013140 is about 519.2656547656.

Adding to 140013140 its reverse (41310041), we get a palindrome (181323181).

The spelling of 140013140 in words is "one hundred forty million, thirteen thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 7000657 14001314 28002628 35003285 70006570 140013140