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153807140 = 2257690357
BaseRepresentation
bin10010010101011…
…10100100100100
3101201102012201202
421022232210210
5303333312030
623132342032
73545224214
oct1112564444
9351365652
10153807140
1179902643
1243614918
1325b32a56
14165da244
15d782745
hex92ae924

153807140 has 12 divisors (see below), whose sum is σ = 322995036. Its totient is φ = 61522848.

The previous prime is 153807139. The next prime is 153807161. The reversal of 153807140 is 41708351.

153807140 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 113763556 + 40043584 = 10666^2 + 6328^2 .

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, 3845159 + ... + 3845198.

It is an arithmetic number, because the mean of its divisors is an integer number (26916253).

Almost surely, 2153807140 is an apocalyptic number.

153807140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

153807140 is an abundant number, since it is smaller than the sum of its proper divisors (169187896).

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

153807140 is a wasteful number, since it uses less digits than its factorization.

153807140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7690366 (or 7690364 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 153807140 is about 12401.9006607858. The cubic root of 153807140 is about 535.7869921044.

The spelling of 153807140 in words is "one hundred fifty-three million, eight hundred seven thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 7690357 15380714 30761428 38451785 76903570 153807140