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5245512031 = 15233444197
BaseRepresentation
bin1001110001010100…
…00010100101011111
3111112120100121202101
410320222002211133
541220322341111
62224301305531
7243663054664
oct47052024537
914476317671
105245512031
112251a55911
1210248652a7
1365798c596
1437a92da6b
1520a7a0bc1
hex138a8295f

5245512031 has 4 divisors (see below), whose sum is σ = 5248957752. Its totient is φ = 5242066312.

The previous prime is 5245512029. The next prime is 5245512037. The reversal of 5245512031 is 1302155425.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5245512031 - 21 = 5245512029 is a prime.

It is a super-2 number, since 2×52455120312 = 55030792934731489922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5245512037) 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, 1720576 + ... + 1723621.

It is an arithmetic number, because the mean of its divisors is an integer number (1312239438).

Almost surely, 25245512031 is an apocalyptic number.

5245512031 is a deficient number, since it is larger than the sum of its proper divisors (3445721).

5245512031 is a wasteful number, since it uses less digits than its factorization.

5245512031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3445720.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 5245512031 is about 72425.9071810633. The cubic root of 5245512031 is about 1737.5179336416.

Adding to 5245512031 its reverse (1302155425), we get a palindrome (6547667456).

The spelling of 5245512031 in words is "five billion, two hundred forty-five million, five hundred twelve thousand, thirty-one".

Divisors: 1 1523 3444197 5245512031