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49312207516 = 221113731180961
BaseRepresentation
bin101101111011001111…
…001001001010011100
311201021122121200201011
4231323033021022130
51301442411120031
634353111425004
73364000563565
oct557317111234
9151248550634
1049312207516
1119a05501410
129682685164
13485b415c20
14255b25316c
1514392d46b1
hexb7b3c929c

49312207516 has 48 divisors (see below), whose sum is σ = 102772037088. Its totient is φ = 20406988800.

The previous prime is 49312207507. The next prime is 49312207519. The reversal of 49312207516 is 61570221394.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49312207519) 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, 548725 + ... + 632236.

It is an arithmetic number, because the mean of its divisors is an integer number (2141084106).

Almost surely, 249312207516 is an apocalyptic number.

It is an amenable number.

49312207516 is an abundant number, since it is smaller than the sum of its proper divisors (53459829572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49312207516 is a wasteful number, since it uses less digits than its factorization.

49312207516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181062 (or 1181060 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The spelling of 49312207516 in words is "forty-nine billion, three hundred twelve million, two hundred seven thousand, five hundred sixteen".

Divisors: 1 2 4 11 13 22 26 44 52 73 143 146 286 292 572 803 949 1606 1898 3212 3796 10439 20878 41756 1180961 2361922 4723844 12990571 15352493 25981142 30704986 51962284 61409972 86210153 168877423 172420306 337754846 344840612 675509692 948311683 1120731989 1896623366 2241463978 3793246732 4482927956 12328051879 24656103758 49312207516