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140068765 = 579735149
BaseRepresentation
bin10000101100101…
…00011110011101
3100202120020020001
420112110132131
5241324200030
621522054301
73320364514
oct1026243635
9322506201
10140068765
1172079811
123aaaa391
1323032735
141486167b
15c46bcca
hex859479d

140068765 has 8 divisors (see below), whose sum is σ = 168298200. Its totient is φ = 111911232.

The previous prime is 140068739. The next prime is 140068769. The reversal of 140068765 is 567860041.

140068765 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 28111204 + 111957561 = 5302^2 + 10581^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140068765 - 215 = 140035997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140068769) 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, 13590 + ... + 21559.

It is an arithmetic number, because the mean of its divisors is an integer number (21037275).

Almost surely, 2140068765 is an apocalyptic number.

It is an amenable number.

140068765 is a deficient number, since it is larger than the sum of its proper divisors (28229435).

140068765 is an equidigital number, since it uses as much as digits as its factorization.

140068765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35951.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 140068765 is about 11835.0650610801. The cubic root of 140068765 is about 519.3344109976.

The spelling of 140068765 in words is "one hundred forty million, sixty-eight thousand, seven hundred sixty-five".

Divisors: 1 5 797 3985 35149 175745 28013753 140068765