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8953812139 = 16375469647
BaseRepresentation
bin10000101011011000…
…00101010010101011
3212010000011210011211
420111230011102223
5121314133442024
64040251133551
7434612101366
oct102554052253
925100153154
108953812139
113885214648
12189a7442b7
13ac902b0bc
1460d2310dd
15376106594
hex215b054ab

8953812139 has 4 divisors (see below), whose sum is σ = 8959283424. Its totient is φ = 8948340856.

The previous prime is 8953812121. The next prime is 8953812157. The reversal of 8953812139 is 9312183598.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9312183598 = 24656091799.

It is an interprime number because it is at equal distance from previous prime (8953812121) and next prime (8953812157).

It is a cyclic number.

It is not a de Polignac number, because 8953812139 - 25 = 8953812107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8953812092 and 8953812101.

It is not an unprimeable number, because it can be changed into a prime (8953812239) 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, 2733187 + ... + 2736460.

It is an arithmetic number, because the mean of its divisors is an integer number (2239820856).

Almost surely, 28953812139 is an apocalyptic number.

8953812139 is a deficient number, since it is larger than the sum of its proper divisors (5471285).

8953812139 is a wasteful number, since it uses less digits than its factorization.

8953812139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5471284.

The product of its digits is 466560, while the sum is 49.

The square root of 8953812139 is about 94624.5852778230. The cubic root of 8953812139 is about 2076.5193992060.

The spelling of 8953812139 in words is "eight billion, nine hundred fifty-three million, eight hundred twelve thousand, one hundred thirty-nine".

Divisors: 1 1637 5469647 8953812139