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5161112169 = 31720370723
BaseRepresentation
bin1001100111010000…
…00101001001101001
3111022200112122220120
410303220011021221
541032221042134
62212044313453
7241616505153
oct46350051151
914280478816
105161112169
112209349a64
121000542889
1364334b635
1436d63dad3
1520317d649
hex133a05269

5161112169 has 4 divisors (see below), whose sum is σ = 6881482896. Its totient is φ = 3440741444.

The previous prime is 5161112149. The next prime is 5161112171. The reversal of 5161112169 is 9612111615.

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 5161112169 - 28 = 5161111913 is a prime.

It is a super-2 number, since 2×51611121692 = 53274157641999769122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5161112119) 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, 860185359 + ... + 860185364.

It is an arithmetic number, because the mean of its divisors is an integer number (1720370724).

Almost surely, 25161112169 is an apocalyptic number.

It is an amenable number.

5161112169 is a deficient number, since it is larger than the sum of its proper divisors (1720370727).

5161112169 is a wasteful number, since it uses less digits than its factorization.

5161112169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1720370726.

The product of its digits is 3240, while the sum is 33.

The square root of 5161112169 is about 71840.8809035635. The cubic root of 5161112169 is about 1728.1486614830.

The spelling of 5161112169 in words is "five billion, one hundred sixty-one million, one hundred twelve thousand, one hundred sixty-nine".

Divisors: 1 3 1720370723 5161112169