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5208442761 = 31736147587
BaseRepresentation
bin1001101100111001…
…01000011110001001
3111102222121022021110
410312130220132021
541131330132021
62220455000533
7243033014214
oct46634503611
914388538243
105208442761
112233037155
121014369149
136500b09c2
14375a4077b
152073cc476
hex136728789

5208442761 has 4 divisors (see below), whose sum is σ = 6944590352. Its totient is φ = 3472295172.

The previous prime is 5208442703. The next prime is 5208442777. The reversal of 5208442761 is 1672448025.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 5208442761 - 29 = 5208442249 is a prime.

It is a super-2 number, since 2×52084427612 = 54255751989226606242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5208441761) 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, 868073791 + ... + 868073796.

It is an arithmetic number, because the mean of its divisors is an integer number (1736147588).

Almost surely, 25208442761 is an apocalyptic number.

It is an amenable number.

5208442761 is a deficient number, since it is larger than the sum of its proper divisors (1736147591).

5208442761 is a wasteful number, since it uses less digits than its factorization.

5208442761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1736147590.

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 5208442761 is about 72169.5417818348. The cubic root of 5208442761 is about 1733.4153254566.

The spelling of 5208442761 in words is "five billion, two hundred eight million, four hundred forty-two thousand, seven hundred sixty-one".

Divisors: 1 3 1736147587 5208442761