Search a number
-
+
61419413131 = 163013767831
BaseRepresentation
bin111001001100111000…
…011101111010001011
312212112102110110111221
4321030320131322023
52001241332210011
644114331102511
74303013253256
oct711470357213
9185472413457
1061419413131
112405872616a
12baa12a1a37
135a3a844c0b
142d891ba09d
1518e717e971
hexe4ce1de8b

61419413131 has 4 divisors (see below), whose sum is σ = 61423197264. Its totient is φ = 61415629000.

The previous prime is 61419413119. The next prime is 61419413179. The reversal of 61419413131 is 13131491416.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61419413131 - 233 = 52829478539 is a prime.

It is a super-2 number, since 2×614194131312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61419410131) 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, 1867615 + ... + 1900216.

It is an arithmetic number, because the mean of its divisors is an integer number (15355799316).

Almost surely, 261419413131 is an apocalyptic number.

61419413131 is a deficient number, since it is larger than the sum of its proper divisors (3784133).

61419413131 is a wasteful number, since it uses less digits than its factorization.

61419413131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3784132.

The product of its digits is 7776, while the sum is 34.

The spelling of 61419413131 in words is "sixty-one billion, four hundred nineteen million, four hundred thirteen thousand, one hundred thirty-one".

Divisors: 1 16301 3767831 61419413131