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2212350431 = 16631330337
BaseRepresentation
bin1000001111011101…
…1100100111011111
312201011221001020212
42003313130213133
514012330203211
61003310203035
7105552445154
oct20367344737
95634831225
102212350431
11a358a5695
12518ab347b
13293466cc5
1416db7422b
15ce35b38b
hex83ddc9df

2212350431 has 4 divisors (see below), whose sum is σ = 2213682432. Its totient is φ = 2211018432.

The previous prime is 2212350409. The next prime is 2212350449. The reversal of 2212350431 is 1340532122.

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 2212350431 - 210 = 2212349407 is a prime.

It is a super-2 number, since 2×22123504312 = 9788988859091771522, 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 = 2212350397 and 2212350406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212350331) 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, 663506 + ... + 666831.

It is an arithmetic number, because the mean of its divisors is an integer number (553420608).

Almost surely, 22212350431 is an apocalyptic number.

2212350431 is a deficient number, since it is larger than the sum of its proper divisors (1332001).

2212350431 is a wasteful number, since it uses less digits than its factorization.

2212350431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332000.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2212350431 is about 47035.6293781640. The cubic root of 2212350431 is about 1303.0206741609.

Adding to 2212350431 its reverse (1340532122), we get a palindrome (3552882553).

The spelling of 2212350431 in words is "two billion, two hundred twelve million, three hundred fifty thousand, four hundred thirty-one".

Divisors: 1 1663 1330337 2212350431