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49386838281 = 3113740447861
BaseRepresentation
bin101101111111101011…
…110101100100001001
311201110212001022212120
4231333223311210021
51302121012311111
634404335201453
73365565125154
oct557753654411
9151425038776
1049386838281
1119a43645630
1296a3676289
134870a16441
14256711cc9b
151440b27406
hexb7faf5909

49386838281 has 16 divisors (see below), whose sum is σ = 73776900288. Its totient is φ = 29122459200.

The previous prime is 49386838279. The next prime is 49386838283. The reversal of 49386838281 is 18283868394.

It is an interprime number because it is at equal distance from previous prime (49386838279) and next prime (49386838283).

It is not a de Polignac number, because 49386838281 - 21 = 49386838279 is a prime.

It is a super-2 number, since 2×493868382812 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49386838283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20222710 + ... + 20225151.

It is an arithmetic number, because the mean of its divisors is an integer number (4611056268).

Almost surely, 249386838281 is an apocalyptic number.

It is an amenable number.

49386838281 is a deficient number, since it is larger than the sum of its proper divisors (24390062007).

49386838281 is a wasteful number, since it uses less digits than its factorization.

49386838281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40447912.

The product of its digits is 15925248, while the sum is 60.

The spelling of 49386838281 in words is "forty-nine billion, three hundred eighty-six million, eight hundred thirty-eight thousand, two hundred eighty-one".

Divisors: 1 3 11 33 37 111 407 1221 40447861 121343583 444926471 1334779413 1496570857 4489712571 16462279427 49386838281