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22148677481 = 75147361471
BaseRepresentation
bin10100101000001010…
…011111111101101001
32010011120122101122012
4110220022133331221
5330330030134411
614101443005305
71412602436510
oct245012377551
963146571565
1022148677481
119436395237
124361669835
13211c8a9c28
141101803677
158996eb18b
hex52829ff69

22148677481 has 8 divisors (see below), whose sum is σ = 25313677824. Its totient is φ = 18983903040.

The previous prime is 22148677399. The next prime is 22148677487. The reversal of 22148677481 is 18477684122.

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 22148677481 - 230 = 21074935657 is a prime.

It is a super-2 number, since 2×221486774812 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22148677487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329576 + ... + 391046.

It is an arithmetic number, because the mean of its divisors is an integer number (3164209728).

Almost surely, 222148677481 is an apocalyptic number.

It is an amenable number.

22148677481 is a deficient number, since it is larger than the sum of its proper divisors (3165000343).

22148677481 is an equidigital number, since it uses as much as digits as its factorization.

22148677481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112951.

The product of its digits is 1204224, while the sum is 50.

The spelling of 22148677481 in words is "twenty-two billion, one hundred forty-eight million, six hundred seventy-seven thousand, four hundred eighty-one".

Divisors: 1 7 51473 61471 360311 430297 3164096783 22148677481