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49389415245 = 3256117992501
BaseRepresentation
bin101101111111110101…
…101010101101001101
311201111000220020210200
4231333311222231031
51302122142241440
634404510324113
73365626050162
oct557765525515
9151430806720
1049389415245
1119a45045755
1296a44b9639
134871409381
1425675d0069
151440e85c30
hexb7fd6ab4d

49389415245 has 24 divisors (see below), whose sum is σ = 87011739672. Its totient is φ = 25909200000.

The previous prime is 49389415169. The next prime is 49389415301. The reversal of 49389415245 is 54251498394.

It is a happy number.

49389415245 is a `hidden beast` number, since 4 + 9 + 389 + 4 + 15 + 245 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1292977764 + 48096437481 = 35958^2 + 219309^2 .

It is not a de Polignac number, because 49389415245 - 211 = 49389413197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49389415191 and 49389415200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8993506 + ... + 8998995.

It is an arithmetic number, because the mean of its divisors is an integer number (3625489153).

Almost surely, 249389415245 is an apocalyptic number.

49389415245 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

49389415245 is a deficient number, since it is larger than the sum of its proper divisors (37622324427).

49389415245 is a wasteful number, since it uses less digits than its factorization.

49389415245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17992573 (or 17992570 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 54.

The spelling of 49389415245 in words is "forty-nine billion, three hundred eighty-nine million, four hundred fifteen thousand, two hundred forty-five".

Divisors: 1 3 5 9 15 45 61 183 305 549 915 2745 17992501 53977503 89962505 161932509 269887515 809662545 1097542561 3292627683 5487712805 9877883049 16463138415 49389415245