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49304741981 = 114482249271
BaseRepresentation
bin101101111010110010…
…101010100001011101
311201021010120101220212
4231322302222201131
51301434003220411
634352243422205
73363550251305
oct557262524135
9151233511825
1049304741981
1119a01272450
129680084965
134859a00b51
14255a26c605
15143880c68b
hexb7acaa85d

49304741981 has 4 divisors (see below), whose sum is σ = 53786991264. Its totient is φ = 44822492700.

The previous prime is 49304741953. The next prime is 49304741989. The reversal of 49304741981 is 18914740394.

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 49304741981 - 26 = 49304741917 is a prime.

It is a super-2 number, since 2×493047419812 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49304741989) 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, 2241124625 + ... + 2241124646.

It is an arithmetic number, because the mean of its divisors is an integer number (13446747816).

Almost surely, 249304741981 is an apocalyptic number.

It is an amenable number.

49304741981 is a deficient number, since it is larger than the sum of its proper divisors (4482249283).

49304741981 is a wasteful number, since it uses less digits than its factorization.

49304741981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4482249282.

The product of its (nonzero) digits is 870912, while the sum is 50.

The spelling of 49304741981 in words is "forty-nine billion, three hundred four million, seven hundred forty-one thousand, nine hundred eighty-one".

Divisors: 1 11 4482249271 49304741981