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140263199 = 891575991
BaseRepresentation
bin10000101110000…
…11111100011111
3100202221002221022
420113003330133
5241401410244
621530154355
73322134416
oct1027037437
9322832838
10140263199
11721a18aa
123ab829bb
13230a009b
14148b247d
15c4a96ee
hex85c3f1f

140263199 has 4 divisors (see below), whose sum is σ = 141839280. Its totient is φ = 138687120.

The previous prime is 140263163. The next prime is 140263213. The reversal of 140263199 is 991362041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 991362041 = 1060793463.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-140263199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140263159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 787907 + ... + 788084.

It is an arithmetic number, because the mean of its divisors is an integer number (35459820).

Almost surely, 2140263199 is an apocalyptic number.

140263199 is a deficient number, since it is larger than the sum of its proper divisors (1576081).

140263199 is an equidigital number, since it uses as much as digits as its factorization.

140263199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1576080.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 140263199 is about 11843.2765314334. The cubic root of 140263199 is about 519.5746015451.

The spelling of 140263199 in words is "one hundred forty million, two hundred sixty-three thousand, one hundred ninety-nine".

Divisors: 1 89 1575991 140263199