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140146793 = 1721925523
BaseRepresentation
bin10000101101001…
…11100001101001
3100202201012020222
420112213201221
5241334144133
621523455425
73321141143
oct1026474151
9322635228
10140146793
11721223a6
123ab27575
132305c0c7
1414881c93
15c484e98
hex85a7869

140146793 has 12 divisors (see below), whose sum is σ = 156717360. Its totient is φ = 124955712.

The previous prime is 140146789. The next prime is 140146801. The reversal of 140146793 is 397641041.

It is not a de Polignac number, because 140146793 - 22 = 140146789 is a prime.

It is a super-2 number, since 2×1401467932 = 39282247176369698, which contains 22 as substring.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140146703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7271 + ... + 18252.

It is an arithmetic number, because the mean of its divisors is an integer number (13059780).

Almost surely, 2140146793 is an apocalyptic number.

It is an amenable number.

140146793 is a deficient number, since it is larger than the sum of its proper divisors (16570567).

140146793 is a wasteful number, since it uses less digits than its factorization.

140146793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25576 (or 25559 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 140146793 is about 11838.3610774465. The cubic root of 140146793 is about 519.4308281708.

The spelling of 140146793 in words is "one hundred forty million, one hundred forty-six thousand, seven hundred ninety-three".

Divisors: 1 17 19 289 323 5491 25523 433891 484937 7376147 8243929 140146793