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140360020 = 2257396137
BaseRepresentation
bin10000101110110…
…11100101010100
3100210010000202021
420113123211110
5241413010040
621532222524
73323016613
oct1027334524
9323100667
10140360020
1172258619
123b00aa44
1323105188
14148d987a
15c4c824a
hex85db954

140360020 has 24 divisors (see below), whose sum is σ = 298796904. Its totient is φ = 55374336.

The previous prime is 140360009. The next prime is 140360027. The reversal of 140360020 is 20063041.

140360020 is digitally balanced in base 2, 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 4 ways, for example, as 38390416 + 101969604 = 6196^2 + 10098^2 .

It is a junction number, because it is equal to n+sod(n) for n = 140359976 and 140360003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140360027) 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, 46609 + ... + 49528.

It is an arithmetic number, because the mean of its divisors is an integer number (12449871).

Almost surely, 2140360020 is an apocalyptic number.

140360020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140360020 is an abundant number, since it is smaller than the sum of its proper divisors (158436884).

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

140360020 is a wasteful number, since it uses less digits than its factorization.

140360020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96219 (or 96217 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 140360020 is about 11847.3634197656. The cubic root of 140360020 is about 519.6941248467.

The spelling of 140360020 in words is "one hundred forty million, three hundred sixty thousand, twenty".

Divisors: 1 2 4 5 10 20 73 146 292 365 730 1460 96137 192274 384548 480685 961370 1922740 7018001 14036002 28072004 35090005 70180010 140360020