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49000000049 = 7311131952579
BaseRepresentation
bin101101101000101000…
…001010101000110001
311200110220010220120122
4231220220022220301
51300323000000144
634302120020025
73353160062000
oct555050125061
9150426126518
1049000000049
111986524a310
1295b6001615
13480b832890
14252b9c2c37
15141bbb37ee
hexb68a0aa31

49000000049 has 64 divisors (see below), whose sum is σ = 70667520000. Its totient is φ = 33389133120.

The previous prime is 49000000001. The next prime is 49000000051. The reversal of 49000000049 is 94000000094.

It is not a de Polignac number, because 49000000049 - 212 = 48999995953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 48999999964 and 49000000027.

It is not an unprimeable number, because it can be changed into a prime (49000000069) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 905642 + ... + 958220.

It is an arithmetic number, because the mean of its divisors is an integer number (1104180000).

Almost surely, 249000000049 is an apocalyptic number.

49000000049 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

49000000049 is a deficient number, since it is larger than the sum of its proper divisors (21667519951).

49000000049 is a wasteful number, since it uses less digits than its factorization.

49000000049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52643 (or 52629 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 49000000049 in words is "forty-nine billion, forty-nine", and thus it is an aban number and an uban number.

Divisors: 1 7 11 13 19 49 77 91 133 143 209 247 343 539 637 931 1001 1463 1729 2717 3773 4459 6517 7007 10241 12103 19019 49049 52579 71687 84721 133133 368053 578369 683527 931931 999001 2576371 4048583 4784689 6993007 7518797 10989011 12987013 18034597 28340081 33492823 48951049 52631579 76923077 90909091 142857143 198380567 234449761 342657343 368421053 538461539 636363637 1000000001 2578947371 3769230773 4454545459 7000000007 49000000049