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2232213131 = 19011174231
BaseRepresentation
bin1000010100001100…
…1101111010001011
312202120022011202102
42011003031322023
514032421310011
61005300024015
7106213333001
oct20503157213
95676264672
102232213131
11a46031845
1252369200b
132975cca95
14172664a71
15d0e8173b
hex850cde8b

2232213131 has 4 divisors (see below), whose sum is σ = 2233389264. Its totient is φ = 2231037000.

The previous prime is 2232213097. The next prime is 2232213167. The reversal of 2232213131 is 1313122322.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2232213131 - 210 = 2232212107 is a prime.

It is a super-3 number, since 3×22322131313 (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2232210131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 585215 + ... + 589016.

It is an arithmetic number, because the mean of its divisors is an integer number (558347316).

Almost surely, 22232213131 is an apocalyptic number.

2232213131 is a deficient number, since it is larger than the sum of its proper divisors (1176133).

2232213131 is a wasteful number, since it uses less digits than its factorization.

2232213131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176132.

The product of its digits is 432, while the sum is 20.

The square root of 2232213131 is about 47246.3028288987. The cubic root of 2232213131 is about 1306.9086111476.

Adding to 2232213131 its reverse (1313122322), we get a palindrome (3545335453).

It can be divided in two parts, 22322 and 13131, that added together give a palindrome (35453).

The spelling of 2232213131 in words is "two billion, two hundred thirty-two million, two hundred thirteen thousand, one hundred thirty-one".

Divisors: 1 1901 1174231 2232213131