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122054899493 = 2711553290011
BaseRepresentation
bin111000110101100001…
…0011111011100100101
3102200001012211022200002
41301223002133130211
53444432023240433
6132023220031045
711550430346012
oct1615302373445
9380035738602
10122054899493
114784389956a
121b7a3b32485
13b681b43c27
145c9c212709
1532955ae9e8
hex1c6b09f725

122054899493 has 8 divisors (see below), whose sum is σ = 122584592256. Its totient is φ = 121525790400.

The previous prime is 122054899481. The next prime is 122054899517. The reversal of 122054899493 is 394998450221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-122054899493 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122054899403) 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, 275858 + ... + 565868.

It is an arithmetic number, because the mean of its divisors is an integer number (15323074032).

Almost surely, 2122054899493 is an apocalyptic number.

It is an amenable number.

122054899493 is a deficient number, since it is larger than the sum of its proper divisors (529692763).

122054899493 is a wasteful number, since it uses less digits than its factorization.

122054899493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291835.

The product of its (nonzero) digits is 5598720, while the sum is 56.

The spelling of 122054899493 in words is "one hundred twenty-two billion, fifty-four million, eight hundred ninety-nine thousand, four hundred ninety-three".

Divisors: 1 271 1553 290011 420863 78592981 450387083 122054899493