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20211112310 = 2561174119031
BaseRepresentation
bin10010110100101011…
…010001100101110110
31221011112202212220012
4102310223101211312
5312343021043220
613141310140222
71313564422454
oct226453214566
957145685805
1020211112310
118631711904
123b007b1672
131ba1352b6c
14d9a35b9d4
157d456cac5
hex4b4ad1976

20211112310 has 32 divisors (see below), whose sum is σ = 36999578304. Its totient is φ = 7946928000.

The previous prime is 20211112309. The next prime is 20211112321. The reversal of 20211112310 is 1321111202.

It is a super-2 number, since 2×202111123102 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1052495 + ... + 1071525.

It is an arithmetic number, because the mean of its divisors is an integer number (1156236822).

Almost surely, 220211112310 is an apocalyptic number.

20211112310 is a deficient number, since it is larger than the sum of its proper divisors (16788465994).

20211112310 is a wasteful number, since it uses less digits than its factorization.

20211112310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20840.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 20211112310 its reverse (1321111202), we get a palindrome (21532223512).

The spelling of 20211112310 in words is "twenty billion, two hundred eleven million, one hundred twelve thousand, three hundred ten".

Divisors: 1 2 5 10 61 122 305 610 1741 3482 8705 17410 19031 38062 95155 106201 190310 212402 531005 1062010 1160891 2321782 5804455 11608910 33132971 66265942 165664855 331329710 2021111231 4042222462 10105556155 20211112310