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3049845761 = 14272137243
BaseRepresentation
bin1011010111001000…
…1111010000000001
321212112211012212102
42311302033100001
522221230031021
61222344440145
7135402155414
oct26562172001
97775735772
103049845761
111325616296
12711479055
13397b17681
1420d09db7b
1512cb3d00b
hexb5c8f401

3049845761 has 4 divisors (see below), whose sum is σ = 3051984432. Its totient is φ = 3047707092.

The previous prime is 3049845749. The next prime is 3049845767. The reversal of 3049845761 is 1675489403.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1675489403 = 7239355629.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3049845761 is a prime.

It is a super-3 number, since 3×30498457613 (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3049845767) 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, 1067195 + ... + 1070048.

It is an arithmetic number, because the mean of its divisors is an integer number (762996108).

Almost surely, 23049845761 is an apocalyptic number.

It is an amenable number.

3049845761 is a deficient number, since it is larger than the sum of its proper divisors (2138671).

3049845761 is a wasteful number, since it uses less digits than its factorization.

3049845761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2138670.

The product of its (nonzero) digits is 725760, while the sum is 47.

The square root of 3049845761 is about 55225.4086539882. The cubic root of 3049845761 is about 1450.1935153536.

The spelling of 3049845761 in words is "three billion, forty-nine million, eight hundred forty-five thousand, seven hundred sixty-one".

Divisors: 1 1427 2137243 3049845761