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1214224423 = 6831777781
BaseRepresentation
bin100100001011111…
…1001100000100111
310010121202222202221
41020113321200213
54441320140143
6320253013211
742042510616
oct11027714047
93117688687
101214224423
11573441865
1229a784207
13164734ab9
14b739387d
15718ea2ed
hex485f9827

1214224423 has 4 divisors (see below), whose sum is σ = 1216002888. Its totient is φ = 1212445960.

The previous prime is 1214224421. The next prime is 1214224447. The reversal of 1214224423 is 3244224121.

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 1214224423 - 21 = 1214224421 is a prime.

It is a super-3 number, since 3×12142244233 (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214224421) 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, 888208 + ... + 889573.

It is an arithmetic number, because the mean of its divisors is an integer number (304000722).

Almost surely, 21214224423 is an apocalyptic number.

1214224423 is a deficient number, since it is larger than the sum of its proper divisors (1778465).

1214224423 is an equidigital number, since it uses as much as digits as its factorization.

1214224423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1778464.

The product of its digits is 3072, while the sum is 25.

The square root of 1214224423 is about 34845.7231665523. The cubic root of 1214224423 is about 1066.8408940774.

Adding to 1214224423 its reverse (3244224121), we get a palindrome (4458448544).

The spelling of 1214224423 in words is "one billion, two hundred fourteen million, two hundred twenty-four thousand, four hundred twenty-three".

Divisors: 1 683 1777781 1214224423