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49016806021 = 317920015029
BaseRepresentation
bin101101101001101000…
…010001101010000101
311200112001202202001001
4231221220101222011
51300341300243041
634303520133301
73353452656001
oct555150215205
9150461682031
1049016806021
1119873788947
1295bb767231
134812168241
14252dd19701
15141d3d3131
hexb69a11a85

49016806021 has 8 divisors (see below), whose sum is σ = 51238476800. Its totient is φ = 46835165520.

The previous prime is 49016805997. The next prime is 49016806067. The reversal of 49016806021 is 12060861094.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49016806021 - 25 = 49016805989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49016809021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10005066 + ... + 10009963.

It is an arithmetic number, because the mean of its divisors is an integer number (6404809600).

Almost surely, 249016806021 is an apocalyptic number.

It is an amenable number.

49016806021 is a deficient number, since it is larger than the sum of its proper divisors (2221670779).

49016806021 is a wasteful number, since it uses less digits than its factorization.

49016806021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20015139.

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 49016806021 in words is "forty-nine billion, sixteen million, eight hundred six thousand, twenty-one".

Divisors: 1 31 79 2449 20015029 620465899 1581187291 49016806021