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20235254241 = 3171549725603
BaseRepresentation
bin10010110110000111…
…010111100111100001
31221020020012102101210
4102312013113213201
5312420211113431
613143531420333
71314306552216
oct226607274741
957206172353
1020235254241
118644301014
123b088b46a9
131ba6356627
14d9d643b0d
157d673ad46
hex4b61d79e1

20235254241 has 16 divisors (see below), whose sum is σ = 28570377024. Its totient is φ = 12695314944.

The previous prime is 20235254233. The next prime is 20235254279. The reversal of 20235254241 is 14245253202.

It is not a de Polignac number, because 20235254241 - 23 = 20235254233 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20235254199 and 20235254208.

It is not an unprimeable number, because it can be changed into a prime (20235252241) 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 15 ways as a sum of consecutive naturals, for example, 777546 + ... + 803148.

It is an arithmetic number, because the mean of its divisors is an integer number (1785648564).

Almost surely, 220235254241 is an apocalyptic number.

It is an amenable number.

20235254241 is a deficient number, since it is larger than the sum of its proper divisors (8335122783).

20235254241 is a wasteful number, since it uses less digits than its factorization.

20235254241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41120.

The product of its (nonzero) digits is 19200, while the sum is 30.

The spelling of 20235254241 in words is "twenty billion, two hundred thirty-five million, two hundred fifty-four thousand, two hundred forty-one".

Divisors: 1 3 17 51 15497 25603 46491 76809 263449 435251 790347 1305753 396769691 1190309073 6745084747 20235254241