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1422312223 = 1977219859
BaseRepresentation
bin101010011000110…
…1100001100011111
310200010022221120111
41110301230030133
510403102442343
6353045030451
750150311603
oct12461541437
93603287514
101422312223
1166a949252
123383b5427
13198891487
14d6c7d503
1584d00c9d
hex54c6c31f

1422312223 has 4 divisors (see below), whose sum is σ = 1429532280. Its totient is φ = 1415092168.

The previous prime is 1422312211. The next prime is 1422312239. The reversal of 1422312223 is 3222132241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3222132241 = 9749330509.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1422312223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1422312194 and 1422312203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422312253) 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, 3609733 + ... + 3610126.

It is an arithmetic number, because the mean of its divisors is an integer number (357383070).

Almost surely, 21422312223 is an apocalyptic number.

1422312223 is a deficient number, since it is larger than the sum of its proper divisors (7220057).

1422312223 is an equidigital number, since it uses as much as digits as its factorization.

1422312223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7220056.

The product of its digits is 1152, while the sum is 22.

The square root of 1422312223 is about 37713.5548974106. The cubic root of 1422312223 is about 1124.6006083173.

Adding to 1422312223 its reverse (3222132241), we get a palindrome (4644444464).

The spelling of 1422312223 in words is "one billion, four hundred twenty-two million, three hundred twelve thousand, two hundred twenty-three".

Divisors: 1 197 7219859 1422312223