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1234144223 = 13177178653
BaseRepresentation
bin100100110001111…
…1000101111011111
310012000021000121022
41021203320233133
510011420103343
6322243554355
742404024054
oct11143705737
93160230538
101234144223
11583707904
122a538b9bb
131688ba870
14b9c9b02b
1573532568
hex498f8bdf

1234144223 has 16 divisors (see below), whose sum is σ = 1427098176. Its totient is φ = 1057082880.

The previous prime is 1234144207. The next prime is 1234144237. The reversal of 1234144223 is 3224414321.

It is a cyclic number.

It is not a de Polignac number, because 1234144223 - 24 = 1234144207 is a prime.

It is a super-2 number, since 2×12341442232 = 3046223926328547458, 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 = 1234144192 and 1234144201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1234146223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23636 + ... + 55017.

It is an arithmetic number, because the mean of its divisors is an integer number (89193636).

Almost surely, 21234144223 is an apocalyptic number.

1234144223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1234144223 is a deficient number, since it is larger than the sum of its proper divisors (192953953).

1234144223 is a wasteful number, since it uses less digits than its factorization.

1234144223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78754.

The product of its digits is 4608, while the sum is 26.

The square root of 1234144223 is about 35130.3888819922. The cubic root of 1234144223 is about 1072.6432518031.

Adding to 1234144223 its reverse (3224414321), we get a palindrome (4458558544).

The spelling of 1234144223 in words is "one billion, two hundred thirty-four million, one hundred forty-four thousand, two hundred twenty-three".

Divisors: 1 13 17 71 221 923 1207 15691 78653 1022489 1337101 5584363 17382313 72596719 94934171 1234144223