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2212132431 = 33719929121
BaseRepresentation
bin1000001111011010…
…0111011001001111
312201011111222012210
42003312213121033
514012301214211
61003301401503
7105550546455
oct20366473117
95634458183
102212132431
11a35766923
12518a09293
132933bba02
1416db189d5
15ce3169a6
hex83da764f

2212132431 has 8 divisors (see below), whose sum is σ = 3029226544. Its totient is φ = 1434896640.

The previous prime is 2212132427. The next prime is 2212132453. The reversal of 2212132431 is 1342312122.

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

It is not a de Polignac number, because 2212132431 - 22 = 2212132427 is a prime.

It is a super-2 number, since 2×22121324312 = 9787059784563939522, 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 = 2212132398 and 2212132407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212132411) 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, 9964450 + ... + 9964671.

It is an arithmetic number, because the mean of its divisors is an integer number (378653318).

Almost surely, 22212132431 is an apocalyptic number.

2212132431 is a deficient number, since it is larger than the sum of its proper divisors (817094113).

2212132431 is a wasteful number, since it uses less digits than its factorization.

2212132431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19929161.

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

The square root of 2212132431 is about 47033.3119288872. The cubic root of 2212132431 is about 1302.9778738532.

Adding to 2212132431 its reverse (1342312122), we get a palindrome (3554444553).

The spelling of 2212132431 in words is "two billion, two hundred twelve million, one hundred thirty-two thousand, four hundred thirty-one".

Divisors: 1 3 37 111 19929121 59787363 737377477 2212132431