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1100144423 = 7222451927
BaseRepresentation
bin100000110010010…
…1101111100100111
32211200010010102202
41001210231330213
54223114110143
6301055525115
736156034100
oct10144557447
92750103382
101100144423
11515003874
1226852979b
13146c01641
14a61793a7
15668b3ab8
hex4192df27

1100144423 has 6 divisors (see below), whose sum is σ = 1279759896. Its totient is φ = 942980892.

The previous prime is 1100144413. The next prime is 1100144429. The reversal of 1100144423 is 3244410011.

It is not a de Polignac number, because 1100144423 - 24 = 1100144407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1100144395 and 1100144404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100144429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11225915 + ... + 11226012.

It is an arithmetic number, because the mean of its divisors is an integer number (213293316).

Almost surely, 21100144423 is an apocalyptic number.

1100144423 is a deficient number, since it is larger than the sum of its proper divisors (179615473).

1100144423 is an equidigital number, since it uses as much as digits as its factorization.

1100144423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22451941 (or 22451934 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1100144423 is about 33168.4250907395. The cubic root of 1100144423 is about 1032.3252907494.

Adding to 1100144423 its reverse (3244410011), we get a palindrome (4344554434).

The spelling of 1100144423 in words is "one billion, one hundred million, one hundred forty-four thousand, four hundred twenty-three".

Divisors: 1 7 49 22451927 157163489 1100144423