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5211711642 = 23978954831
BaseRepresentation
bin1001101101010010…
…00110100010011010
3111110012202101100010
410312221012202122
541133144233032
62221053022350
7243102550404
oct46651064232
914405671303
105211711642
11223496a105
1210154849b6
13650986857
14376251b74
15207825ccc
hex136a4689a

5211711642 has 16 divisors (see below), whose sum is σ = 10530882432. Its totient is φ = 1719327360.

The previous prime is 5211711623. The next prime is 5211711643. The reversal of 5211711642 is 2461171125.

It is not an unprimeable number, because it can be changed into a prime (5211711643) 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, 4476834 + ... + 4477997.

It is an arithmetic number, because the mean of its divisors is an integer number (658180152).

Almost surely, 25211711642 is an apocalyptic number.

5211711642 is an abundant number, since it is smaller than the sum of its proper divisors (5319170790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5211711642 is a wasteful number, since it uses less digits than its factorization.

5211711642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8954933.

The product of its digits is 3360, while the sum is 30.

The square root of 5211711642 is about 72192.1854635251. The cubic root of 5211711642 is about 1733.7778870178. Note that the first 3 decimals are identical.

Adding to 5211711642 its reverse (2461171125), we get a palindrome (7672882767).

The spelling of 5211711642 in words is "five billion, two hundred eleven million, seven hundred eleven thousand, six hundred forty-two".

Divisors: 1 2 3 6 97 194 291 582 8954831 17909662 26864493 53728986 868618607 1737237214 2605855821 5211711642