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5115102061 = 7172043691
BaseRepresentation
bin1001100001110001…
…00100001101101101
3111012110222002220111
410300320210031231
540433431231221
62203322220021
7240520435666
oct46070441555
914173862814
105115102061
112195383983
12ba9054611
1363695c314
143674a436d
151ee0e0be1
hex130e2436d

5115102061 has 4 divisors (see below), whose sum is σ = 5187145824. Its totient is φ = 5043058300.

The previous prime is 5115102053. The next prime is 5115102079. The reversal of 5115102061 is 1602015115.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 5115102061 - 23 = 5115102053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5115102011) 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, 36021775 + ... + 36021916.

It is an arithmetic number, because the mean of its divisors is an integer number (1296786456).

Almost surely, 25115102061 is an apocalyptic number.

It is an amenable number.

5115102061 is a deficient number, since it is larger than the sum of its proper divisors (72043763).

5115102061 is an equidigital number, since it uses as much as digits as its factorization.

5115102061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72043762.

The product of its (nonzero) digits is 300, while the sum is 22.

The square root of 5115102061 is about 71519.9417015982. The cubic root of 5115102061 is about 1722.9979782570.

Adding to 5115102061 its reverse (1602015115), we get a palindrome (6717117176).

The spelling of 5115102061 in words is "five billion, one hundred fifteen million, one hundred two thousand, sixty-one".

Divisors: 1 71 72043691 5115102061