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5251050251 = 61108779193
BaseRepresentation
bin1001110001111110…
…01010101100001011
3111112221202222202122
410320333022230023
541223232102001
62225020121455
7244061122256
oct47077125413
914487688678
105251050251
112255098857
12102669628b
13658b7b335
1437b57209d
1520aee6b1b
hex138fcab0b

5251050251 has 8 divisors (see below), whose sum is σ = 5342110464. Its totient is φ = 5160150720.

The previous prime is 5251050241. The next prime is 5251050317. The reversal of 5251050251 is 1520501525.

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 5251050251 - 218 = 5250788107 is a prime.

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 5251050251.

It is not an unprimeable number, because it can be changed into a prime (5251050241) 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, 26711 + ... + 105903.

It is an arithmetic number, because the mean of its divisors is an integer number (667763808).

Almost surely, 25251050251 is an apocalyptic number.

5251050251 is a deficient number, since it is larger than the sum of its proper divisors (91060213).

5251050251 is a wasteful number, since it uses less digits than its factorization.

5251050251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80341.

The product of its (nonzero) digits is 2500, while the sum is 26.

The square root of 5251050251 is about 72464.1307889634. The cubic root of 5251050251 is about 1738.1292099686.

Adding to 5251050251 its reverse (1520501525), we get a palindrome (6771551776).

The spelling of 5251050251 in words is "five billion, two hundred fifty-one million, fifty thousand, two hundred fifty-one".

Divisors: 1 61 1087 66307 79193 4830773 86082791 5251050251