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8253117139 = 471091610993
BaseRepresentation
bin1111010111110110…
…01001001011010011
3210022011200210100011
413223323021023103
5113400244222024
63442540535351
7411343224001
oct75373111323
923264623304
108253117139
113555740073
121723b51557
13a16b07587
14584155a71
15334848094
hex1ebec92d3

8253117139 has 8 divisors (see below), whose sum is σ = 8506048320. Its totient is φ = 8003408256.

The previous prime is 8253117113. The next prime is 8253117149. The reversal of 8253117139 is 9317113528.

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

It is a cyclic number.

It is not a de Polignac number, because 8253117139 - 25 = 8253117107 is a prime.

It is a super-2 number, since 2×82531171392 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8253117149) 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, 800374 + ... + 810619.

It is an arithmetic number, because the mean of its divisors is an integer number (1063256040).

Almost surely, 28253117139 is an apocalyptic number.

8253117139 is a deficient number, since it is larger than the sum of its proper divisors (252931181).

8253117139 is a wasteful number, since it uses less digits than its factorization.

8253117139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1611149.

The product of its digits is 45360, while the sum is 40.

The square root of 8253117139 is about 90846.6682878354. The cubic root of 8253117139 is about 2020.8744652741.

The spelling of 8253117139 in words is "eight billion, two hundred fifty-three million, one hundred seventeen thousand, one hundred thirty-nine".

Divisors: 1 47 109 5123 1610993 75716671 175598237 8253117139