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8916139 = 59151121
BaseRepresentation
bin100010000000…
…110010101011
3121202222122101
4202000302223
54240304024
6515034231
7135533401
oct42006253
917688571
108916139
11503a911
122b9b977
131b0242b
141281471
15bb1c44
hex880cab

8916139 has 4 divisors (see below), whose sum is σ = 9067320. Its totient is φ = 8764960.

The previous prime is 8916121. The next prime is 8916151. The reversal of 8916139 is 9316198.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9316198 = 24658099.

It is a cyclic number.

It is not a de Polignac number, because 8916139 - 25 = 8916107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8916098 and 8916107.

It is not an unprimeable number, because it can be changed into a prime (8916199) 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, 75502 + ... + 75619.

It is an arithmetic number, because the mean of its divisors is an integer number (2266830).

Almost surely, 28916139 is an apocalyptic number.

8916139 is a deficient number, since it is larger than the sum of its proper divisors (151181).

8916139 is a wasteful number, since it uses less digits than its factorization.

8916139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151180.

The product of its digits is 11664, while the sum is 37.

The square root of 8916139 is about 2985.9904554436. The cubic root of 8916139 is about 207.3602988630.

The spelling of 8916139 in words is "eight million, nine hundred sixteen thousand, one hundred thirty-nine".

Divisors: 1 59 151121 8916139