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5120001031 = 25740194957
BaseRepresentation
bin1001100010010110…
…10000010000000111
3111012211012000000211
410301023100100013
540441210013111
62204015220251
7240610201465
oct46113202007
914184160024
105120001031
11219811a612
12baa817687
13637986112
14367dbb835
151ee75c521
hex1312d0407

5120001031 has 8 divisors (see below), whose sum is σ = 5142239280. Its totient is φ = 5097781248.

The previous prime is 5120001001. The next prime is 5120001037. The reversal of 5120001031 is 1301000215.

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 5120001031 - 25 = 5120000999 is a prime.

It is a super-2 number, since 2×51200010312 = 52428821114882125922, 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 (5120001037) 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, 1030405 + ... + 1035361.

It is an arithmetic number, because the mean of its divisors is an integer number (642779910).

Almost surely, 25120001031 is an apocalyptic number.

5120001031 is a deficient number, since it is larger than the sum of its proper divisors (22238249).

5120001031 is a wasteful number, since it uses less digits than its factorization.

5120001031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9233.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 5120001031 is about 71554.1824843244. The cubic root of 5120001031 is about 1723.5478677142.

Adding to 5120001031 its reverse (1301000215), we get a palindrome (6421001246).

The spelling of 5120001031 in words is "five billion, one hundred twenty million, one thousand, thirty-one".

Divisors: 1 257 4019 4957 1032883 1273949 19922183 5120001031