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5220191931 = 310511655627
BaseRepresentation
bin1001101110010010…
…11100111010111011
3111110210201020002220
410313021130322323
541142332120211
62221554455123
7243234620313
oct46711347273
914423636086
105220191931
112239731509
1210182944a3
13652665786
1437741c443
1520844d806
hex13725cebb

5220191931 has 8 divisors (see below), whose sum is σ = 6966882624. Its totient is φ = 3476814600.

The previous prime is 5220191927. The next prime is 5220191983. The reversal of 5220191931 is 1391910225.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5220191931 - 22 = 5220191927 is a prime.

It is a super-2 number, since 2×52201919312 = 54500807592955017522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5220191892 and 5220191901.

It is not an unprimeable number, because it can be changed into a prime (5220191831) 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, 824661 + ... + 830966.

It is an arithmetic number, because the mean of its divisors is an integer number (870860328).

Almost surely, 25220191931 is an apocalyptic number.

5220191931 is a deficient number, since it is larger than the sum of its proper divisors (1746690693).

5220191931 is a wasteful number, since it uses less digits than its factorization.

5220191931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1656681.

The product of its (nonzero) digits is 4860, while the sum is 33.

The square root of 5220191931 is about 72250.8957107107. The cubic root of 5220191931 is about 1734.7177554703.

The spelling of 5220191931 in words is "five billion, two hundred twenty million, one hundred ninety-one thousand, nine hundred thirty-one".

Divisors: 1 3 1051 3153 1655627 4966881 1740063977 5220191931