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5216205761 = 131723602741
BaseRepresentation
bin1001101101110100…
…01111101111000001
3111110112012201002222
410312322033233001
541140322041021
62221333220425
7243156005654
oct46672175701
914415181088
105216205761
112237459658
121016a91715
1365189b2b0
14376aa189b
15207e126ab
hex136e8fbc1

5216205761 has 8 divisors (see below), whose sum is σ = 5947890984. Its totient is φ = 4531726080.

The previous prime is 5216205703. The next prime is 5216205803. The reversal of 5216205761 is 1675026125.

It can be written as a sum of positive squares in 4 ways, for example, as 1994962225 + 3221243536 = 44665^2 + 56756^2 .

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 5216205761 - 210 = 5216204737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5216205661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11801150 + ... + 11801591.

It is an arithmetic number, because the mean of its divisors is an integer number (743486373).

Almost surely, 25216205761 is an apocalyptic number.

It is an amenable number.

5216205761 is a deficient number, since it is larger than the sum of its proper divisors (731685223).

5216205761 is a wasteful number, since it uses less digits than its factorization.

5216205761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23602771.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 5216205761 is about 72223.3048329969. The cubic root of 5216205761 is about 1734.2760960578.

The spelling of 5216205761 in words is "five billion, two hundred sixteen million, two hundred five thousand, seven hundred sixty-one".

Divisors: 1 13 17 221 23602741 306835633 401246597 5216205761