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20211223295 = 531130394989
BaseRepresentation
bin10010110100101011…
…101100101011111111
31221011112222112010202
4102310223230223333
5312343033121140
613141312354115
71313565364154
oct226453545377
957145875122
1020211223295
11863178822a
123b0084593b
131ba1391533
14d9a38a22b
157d4590915
hex4b4aecaff

20211223295 has 8 divisors (see below), whose sum is σ = 25035838080. Its totient is φ = 15647398560.

The previous prime is 20211223273. The next prime is 20211223309. The reversal of 20211223295 is 59232211202.

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

It is not a de Polignac number, because 20211223295 - 26 = 20211223231 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65197340 + ... + 65197649.

It is an arithmetic number, because the mean of its divisors is an integer number (3129479760).

Almost surely, 220211223295 is an apocalyptic number.

20211223295 is a deficient number, since it is larger than the sum of its proper divisors (4824614785).

20211223295 is a wasteful number, since it uses less digits than its factorization.

20211223295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130395025.

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 20211223295 its reverse (59232211202), we get a palindrome (79443434497).

The spelling of 20211223295 in words is "twenty billion, two hundred eleven million, two hundred twenty-three thousand, two hundred ninety-five".

Divisors: 1 5 31 155 130394989 651974945 4042244659 20211223295