Search a number
-
+
140457260 = 2257988897
BaseRepresentation
bin10000101111100…
…11010100101100
3100210021222010202
420113303110230
5241424113020
621534253032
73323603246
oct1027632454
9323258122
10140457260
1172314689
123b057178
132313a508
1414923096
15c4e6e75
hex85f352c

140457260 has 24 divisors (see below), whose sum is σ = 298697280. Its totient is φ = 55471104.

The previous prime is 140457227. The next prime is 140457269. The reversal of 140457260 is 62754041.

140457260 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (140457269) 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, 42869 + ... + 46028.

It is an arithmetic number, because the mean of its divisors is an integer number (12445720).

Almost surely, 2140457260 is an apocalyptic number.

140457260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140457260 is an abundant number, since it is smaller than the sum of its proper divisors (158240020).

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

140457260 is a wasteful number, since it uses less digits than its factorization.

140457260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88985 (or 88983 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 140457260 is about 11851.4665759137. The cubic root of 140457260 is about 519.8141100845.

The spelling of 140457260 in words is "one hundred forty million, four hundred fifty-seven thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 79 158 316 395 790 1580 88897 177794 355588 444485 888970 1777940 7022863 14045726 28091452 35114315 70228630 140457260