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2211234231 = 31938793583
BaseRepresentation
bin1000001111001100…
…1100000110110111
312201002211100010010
42003303030012313
514012033443411
61003230231303
7105540116013
oct20363140667
95632740103
102211234231
11a35203008
12518655533
13293165c2b
1416d963543
15ce1da7a6
hex83ccc1b7

2211234231 has 8 divisors (see below), whose sum is σ = 3103486720. Its totient is φ = 1396568952.

The previous prime is 2211234229. The next prime is 2211234271. The reversal of 2211234231 is 1324321122.

2211234231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2211234231 - 21 = 2211234229 is a prime.

It is a super-2 number, since 2×22112342312 = 9779113648692322722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2211234198 and 2211234207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211234271) 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, 19396735 + ... + 19396848.

It is an arithmetic number, because the mean of its divisors is an integer number (387935840).

Almost surely, 22211234231 is an apocalyptic number.

2211234231 is a deficient number, since it is larger than the sum of its proper divisors (892252489).

2211234231 is a wasteful number, since it uses less digits than its factorization.

2211234231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38793605.

The product of its digits is 576, while the sum is 21.

The square root of 2211234231 is about 47023.7624079571. The cubic root of 2211234231 is about 1302.8014990659.

Adding to 2211234231 its reverse (1324321122), we get a palindrome (3535555353).

The spelling of 2211234231 in words is "two billion, two hundred eleven million, two hundred thirty-four thousand, two hundred thirty-one".

Divisors: 1 3 19 57 38793583 116380749 737078077 2211234231