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49217126399 = 721050195651
BaseRepresentation
bin101101110101100100…
…011011111111111111
311201001000201001221022
4231311210123333333
51301244041021044
634335433454355
73361434446300
oct556544337777
9151030631838
1049217126399
111996686a581
1296568713bb
1348448052cc
14254c7827a7
151430ca23ee
hexb7591bfff

49217126399 has 12 divisors (see below), whose sum is σ = 57258626328. Its totient is φ = 42181650000.

The previous prime is 49217126393. The next prime is 49217126417. The reversal of 49217126399 is 99362171294.

It is not a de Polignac number, because 49217126399 - 216 = 49217060863 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49217126399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49217126393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 466724 + ... + 562374.

It is an arithmetic number, because the mean of its divisors is an integer number (4771552194).

Almost surely, 249217126399 is an apocalyptic number.

49217126399 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

49217126399 is a deficient number, since it is larger than the sum of its proper divisors (8041499929).

49217126399 is a wasteful number, since it uses less digits than its factorization.

49217126399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106166 (or 106159 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 53.

It can be divided in two parts, 49217 and 126399, that added together give a cube (175616 = 563).

The spelling of 49217126399 in words is "forty-nine billion, two hundred seventeen million, one hundred twenty-six thousand, three hundred ninety-nine".

Divisors: 1 7 49 10501 73507 95651 514549 669557 4686899 1004431151 7031018057 49217126399