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8942313745 = 52297809881
BaseRepresentation
bin10000101010000000…
…01110000100010001
3212002012112121100101
420111000032010101
5121303213014440
64035200452401
7434412261361
oct102500160421
925065477311
108942313745
113879780742
12189691a101
13ac6833511
1460b8ba9a1
153750d469a
hex21500e111

8942313745 has 8 divisors (see below), whose sum is σ = 10777637160. Its totient is φ = 7122610560.

The previous prime is 8942313739. The next prime is 8942313749. The reversal of 8942313745 is 5473132498.

It can be written as a sum of positive squares in 4 ways, for example, as 3377004544 + 5565309201 = 58112^2 + 74601^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-8942313745 is a prime.

It is a super-2 number, since 2×89423137452 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8942313695 and 8942313704.

It is not an unprimeable number, because it can be changed into a prime (8942313749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3903796 + ... + 3906085.

It is an arithmetic number, because the mean of its divisors is an integer number (1347204645).

Almost surely, 28942313745 is an apocalyptic number.

It is an amenable number.

8942313745 is a deficient number, since it is larger than the sum of its proper divisors (1835323415).

8942313745 is a wasteful number, since it uses less digits than its factorization.

8942313745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7810115.

The product of its digits is 725760, while the sum is 46.

The square root of 8942313745 is about 94563.8077966407. The cubic root of 8942313745 is about 2075.6301367765.

The spelling of 8942313745 in words is "eight billion, nine hundred forty-two million, three hundred thirteen thousand, seven hundred forty-five".

Divisors: 1 5 229 1145 7809881 39049405 1788462749 8942313745