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5142224231 = 31165878201
BaseRepresentation
bin1001100101000000…
…00001110101100111
3111021101000001112022
410302200001311213
541012402133411
62210131413355
7241300120244
oct46240016547
914241001468
105142224231
1121a97191a1
12bb615425b
1363c467441
1436ad245cb
1520169bedb
hex132801d67

5142224231 has 4 divisors (see below), whose sum is σ = 5308102464. Its totient is φ = 4976346000.

The previous prime is 5142224207. The next prime is 5142224251. The reversal of 5142224231 is 1324222415.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-5142224231 is a prime.

It is a super-2 number, since 2×51422242312 = 52884940083767082722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5142224231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5142224251) 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, 82939070 + ... + 82939131.

It is an arithmetic number, because the mean of its divisors is an integer number (1327025616).

Almost surely, 25142224231 is an apocalyptic number.

5142224231 is a deficient number, since it is larger than the sum of its proper divisors (165878233).

5142224231 is a wasteful number, since it uses less digits than its factorization.

5142224231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165878232.

The product of its digits is 3840, while the sum is 26.

The square root of 5142224231 is about 71709.3036571964. The cubic root of 5142224231 is about 1726.0379365445.

Adding to 5142224231 its reverse (1324222415), we get a palindrome (6466446646).

The spelling of 5142224231 in words is "five billion, one hundred forty-two million, two hundred twenty-four thousand, two hundred thirty-one".

Divisors: 1 31 165878201 5142224231