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22009230977 = 531373031157
BaseRepresentation
bin10100011111110110…
…100011011010000001
32002210212020202222212
4110133312203122001
5330033330342402
614035542111505
71406260243106
oct243766433201
962725222885
1022009230977
119374700a98
124322a1b595
1320c9a347c6
1410cb0a4aad
1588c353952
hex51fda3681

22009230977 has 8 divisors (see below), whose sum is σ = 22588189416. Its totient is φ = 21436335232.

The previous prime is 22009230961. The next prime is 22009230979. The reversal of 22009230977 is 77903290022.

It can be written as a sum of positive squares in 4 ways, for example, as 6838628416 + 15170602561 = 82696^2 + 123169^2 .

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 22009230977 - 24 = 22009230961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22009230979) 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, 1508318 + ... + 1522839.

It is an arithmetic number, because the mean of its divisors is an integer number (2823523677).

Almost surely, 222009230977 is an apocalyptic number.

It is an amenable number.

22009230977 is a deficient number, since it is larger than the sum of its proper divisors (578958439).

22009230977 is a wasteful number, since it uses less digits than its factorization.

22009230977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3031347.

The product of its (nonzero) digits is 95256, while the sum is 41.

The spelling of 22009230977 in words is "twenty-two billion, nine million, two hundred thirty thousand, nine hundred seventy-seven".

Divisors: 1 53 137 7261 3031157 160651321 415268509 22009230977