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140492880 = 243751173
BaseRepresentation
bin10000101111111…
…00000001010000
3100210100210000000
420113330001100
5241431233010
621535130000
73324112143
oct1027740120
9323323000
10140492880
1172339420
123b073900
13231507a8
141493205a
15c5027c0
hex85fc050

140492880 has 320 divisors, whose sum is σ = 541751040. Its totient is φ = 33592320.

The previous prime is 140492851. The next prime is 140492893. The reversal of 140492880 is 88294041.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a Saint-Exupery number, since it is equal to the product of the sides of a Pythagorean triangle: 657 × 495 × 432.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1924524 + ... + 1924596.

It is an arithmetic number, because the mean of its divisors is an integer number (1692972).

Almost surely, 2140492880 is an apocalyptic number.

140492880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140492880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270875520).

140492880 is an abundant number, since it is smaller than the sum of its proper divisors (401258160).

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

140492880 is an equidigital number, since it uses as much as digits as its factorization.

140492880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 140492880 is about 11852.9692482517. The cubic root of 140492880 is about 519.8580480378.

The spelling of 140492880 in words is "one hundred forty million, four hundred ninety-two thousand, eight hundred eighty".