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140177933 = 720025419
BaseRepresentation
bin10000101101011…
…11001000001101
3100202202202222022
420112233020031
5241341143213
621524255525
73321331010
oct1026571015
9322682868
10140177933
1172143835
123ab415a5
132307032c
141488d377
15c48e308
hex85af20d

140177933 has 4 divisors (see below), whose sum is σ = 160203360. Its totient is φ = 120152508.

The previous prime is 140177899. The next prime is 140177957. The reversal of 140177933 is 339771041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 339771041 = 834093627.

It is not a de Polignac number, because 140177933 - 220 = 139129357 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140177893 and 140177902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140177993) 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 3 ways as a sum of consecutive naturals, for example, 10012703 + ... + 10012716.

It is an arithmetic number, because the mean of its divisors is an integer number (40050840).

Almost surely, 2140177933 is an apocalyptic number.

It is an amenable number.

140177933 is a deficient number, since it is larger than the sum of its proper divisors (20025427).

140177933 is an equidigital number, since it uses as much as digits as its factorization.

140177933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20025426.

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 140177933 is about 11839.6762202351. The cubic root of 140177933 is about 519.4692970690.

The spelling of 140177933 in words is "one hundred forty million, one hundred seventy-seven thousand, nine hundred thirty-three".

Divisors: 1 7 20025419 140177933