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140513898 = 23710731267
BaseRepresentation
bin10000110000000…
…01001001101010
3100210101211211110
420120001021222
5241432421043
621535411150
73324230340
oct1030011152
9323354743
10140513898
1172353198
123b083ab6
132315a225
1414939990
15c508b33
hex860126a

140513898 has 32 divisors (see below), whose sum is σ = 324186624. Its totient is φ = 39770352.

The previous prime is 140513897. The next prime is 140513951. The reversal of 140513898 is 898315041.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (140513897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11140 + ... + 20127.

It is an arithmetic number, because the mean of its divisors is an integer number (10130832).

Almost surely, 2140513898 is an apocalyptic number.

140513898 is an abundant number, since it is smaller than the sum of its proper divisors (183672726).

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

140513898 is a wasteful number, since it uses less digits than its factorization.

140513898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31386.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 140513898 is about 11853.8558283792. The cubic root of 140513898 is about 519.8839706602.

The spelling of 140513898 in words is "one hundred forty million, five hundred thirteen thousand, eight hundred ninety-eight".

Divisors: 1 2 3 6 7 14 21 42 107 214 321 642 749 1498 2247 4494 31267 62534 93801 187602 218869 437738 656607 1313214 3345569 6691138 10036707 20073414 23418983 46837966 70256949 140513898