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49994127813 = 3723103507511
BaseRepresentation
bin101110100011111000…
…011101100111000101
311210001011202211111110
4232203320131213011
51304341444042223
634544511355233
73416621034450
oct564370354705
9153034684443
1049994127813
111a225422203
129832b22b19
134939794c66
1425c3a42497
1514790d4d93
hexba3e1d9c5

49994127813 has 16 divisors (see below), whose sum is σ = 79493769216. Its totient is φ = 27325982640.

The previous prime is 49994127803. The next prime is 49994127851. The reversal of 49994127813 is 31872149994.

It is not a de Polignac number, because 49994127813 - 26 = 49994127749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49994127803) 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, 51753273 + ... + 51754238.

It is an arithmetic number, because the mean of its divisors is an integer number (4968360576).

Almost surely, 249994127813 is an apocalyptic number.

It is an amenable number.

49994127813 is a deficient number, since it is larger than the sum of its proper divisors (29499641403).

49994127813 is a wasteful number, since it uses less digits than its factorization.

49994127813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103507544.

The product of its digits is 3919104, while the sum is 57.

The spelling of 49994127813 in words is "forty-nine billion, nine hundred ninety-four million, one hundred twenty-seven thousand, eight hundred thirteen".

Divisors: 1 3 7 21 23 69 161 483 103507511 310522533 724552577 2173657731 2380672753 7142018259 16664709271 49994127813