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20383746311 = 53445786291
BaseRepresentation
bin10010111110111101…
…110100100100000111
31221121120121121020002
4102332331310210013
5313221214340221
613210354231515
71321061661545
oct227675644407
957546547202
1020383746311
118710103335
123b4a58559b
131bcb048066
14db5258d95
157e47bd80b
hex4bef74907

20383746311 has 8 divisors (see below), whose sum is σ = 20773245744. Its totient is φ = 19994428480.

The previous prime is 20383746301. The next prime is 20383746319. The reversal of 20383746311 is 11364738302.

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 20383746311 - 222 = 20379552007 is a prime.

It is a super-2 number, since 2×203837463112 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20383746319) 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, 193076 + ... + 279366.

It is an arithmetic number, because the mean of its divisors is an integer number (2596655718).

Almost surely, 220383746311 is an apocalyptic number.

20383746311 is a deficient number, since it is larger than the sum of its proper divisors (389499433).

20383746311 is an equidigital number, since it uses as much as digits as its factorization.

20383746311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90801.

The product of its (nonzero) digits is 72576, while the sum is 38.

The spelling of 20383746311 in words is "twenty billion, three hundred eighty-three million, seven hundred forty-six thousand, three hundred eleven".

Divisors: 1 53 4457 86291 236221 4573423 384598987 20383746311