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3108247745 = 55197119617
BaseRepresentation
bin1011100101000100…
…0001100011000001
322000121201100022212
42321101001203001
522331202411440
61232232311505
7140011445531
oct27121014301
98017640285
103108247745
111355585599
12728b42595
133a6c55165
14216b434c1
15132d27465
hexb94418c1

3108247745 has 8 divisors (see below), whose sum is σ = 3730646184. Its totient is φ = 2486098944.

The previous prime is 3108247697. The next prime is 3108247777. The reversal of 3108247745 is 5477428013.

It can be written as a sum of positive squares in 4 ways, for example, as 337383424 + 2770864321 = 18368^2 + 52639^2 .

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 3108247745 - 210 = 3108246721 is a prime.

It is a super-2 number, since 2×31082477452 = 19322408088595170050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33824 + ... + 85793.

It is an arithmetic number, because the mean of its divisors is an integer number (466330773).

Almost surely, 23108247745 is an apocalyptic number.

It is an amenable number.

3108247745 is a deficient number, since it is larger than the sum of its proper divisors (622398439).

3108247745 is a wasteful number, since it uses less digits than its factorization.

3108247745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124819.

The product of its (nonzero) digits is 188160, while the sum is 41.

The square root of 3108247745 is about 55751.6613653800. The cubic root of 3108247745 is about 1459.3917127301.

The spelling of 3108247745 in words is "three billion, one hundred eight million, two hundred forty-seven thousand, seven hundred forty-five".

Divisors: 1 5 5197 25985 119617 598085 621649549 3108247745