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22691844242 = 213981625339
BaseRepresentation
bin10101001000100010…
…100001000010010010
32011120102201010100122
4111020202201002102
5332433103003432
614231404550242
71432216331204
oct251042410222
964512633318
1022691844242
119694a55491
124493552382
1321a8297092
1411539d4774
158cc23e612
hex5488a1092

22691844242 has 8 divisors (see below), whose sum is σ = 34282642800. Its totient is φ = 11264296644.

The previous prime is 22691844233. The next prime is 22691844257. The reversal of 22691844242 is 24244819622.

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

It is a junction number, because it is equal to n+sod(n) for n = 22691844193 and 22691844202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40812392 + ... + 40812947.

It is an arithmetic number, because the mean of its divisors is an integer number (4285330350).

Almost surely, 222691844242 is an apocalyptic number.

22691844242 is a deficient number, since it is larger than the sum of its proper divisors (11590798558).

22691844242 is a wasteful number, since it uses less digits than its factorization.

22691844242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81625480.

The product of its digits is 442368, while the sum is 44.

The spelling of 22691844242 in words is "twenty-two billion, six hundred ninety-one million, eight hundred forty-four thousand, two hundred forty-two".

Divisors: 1 2 139 278 81625339 163250678 11345922121 22691844242