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49422372949 = 239320652893
BaseRepresentation
bin101110000001110011…
…011001000001010101
311201120022220200021101
4232001303121001111
51302204111413244
634412044550101
73366506144605
oct560163310125
9151508820241
1049422372949
1119a61706324
1296b3552331
1348781a8681
14256bb2cc05
151443ce60d4
hexb81cd9055

49422372949 has 4 divisors (see below), whose sum is σ = 49443028236. Its totient is φ = 49401717664.

The previous prime is 49422372941. The next prime is 49422373003. The reversal of 49422372949 is 94927322494.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94927322494 = 247463661247.

It can be written as a sum of positive squares in 2 ways, for example, as 23472384849 + 25949988100 = 153207^2 + 161090^2 .

It is a cyclic number.

It is not a de Polignac number, because 49422372949 - 23 = 49422372941 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49422372949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49422372941) 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, 10324054 + ... + 10328839.

It is an arithmetic number, because the mean of its divisors is an integer number (12360757059).

Almost surely, 249422372949 is an apocalyptic number.

It is an amenable number.

49422372949 is a deficient number, since it is larger than the sum of its proper divisors (20655287).

49422372949 is a wasteful number, since it uses less digits than its factorization.

49422372949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20655286.

The product of its digits is 7838208, while the sum is 55.

The spelling of 49422372949 in words is "forty-nine billion, four hundred twenty-two million, three hundred seventy-two thousand, nine hundred forty-nine".

Divisors: 1 2393 20652893 49422372949