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3117285494 = 21558642747
BaseRepresentation
bin1011100111001110…
…0000000001110110
322001020201111210022
42321303200001312
522341011113434
61233154125142
7140151326621
oct27163400166
98036644708
103117285494
11135a698804
1272bb807b2
133a8a9aa3b
14218016db8
15133a1022e
hexb9ce0076

3117285494 has 4 divisors (see below), whose sum is σ = 4675928244. Its totient is φ = 1558642746.

The previous prime is 3117285439. The next prime is 3117285503. The reversal of 3117285494 is 4945827113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4945827113 = 6181079133.

It is a super-2 number, since 2×31172854942 = 19434937702205648072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 779321372 + ... + 779321375.

It is an arithmetic number, because the mean of its divisors is an integer number (1168982061).

Almost surely, 23117285494 is an apocalyptic number.

3117285494 is a deficient number, since it is larger than the sum of its proper divisors (1558642750).

3117285494 is a wasteful number, since it uses less digits than its factorization.

3117285494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1558642749.

The product of its digits is 241920, while the sum is 44.

The square root of 3117285494 is about 55832.6561610676. The cubic root of 3117285494 is about 1460.8048189788.

The spelling of 3117285494 in words is "three billion, one hundred seventeen million, two hundred eighty-five thousand, four hundred ninety-four".

Divisors: 1 2 1558642747 3117285494