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1131030023 = 3738379813
BaseRepresentation
bin100001101101010…
…0010011000000111
32220211020021111212
41003122202120013
54304020430043
6304121522035
740012411424
oct10332423007
92824207455
101131030023
11530489662
1227694331b
13150426746
14aa2d8d4b
1569465018
hex436a2607

1131030023 has 8 divisors (see below), whose sum is σ = 1164645888. Its totient is φ = 1097574624.

The previous prime is 1131030013. The next prime is 1131030031. The reversal of 1131030023 is 3200301311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1131030023 - 222 = 1126835719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131030013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25736 + ... + 54077.

It is an arithmetic number, because the mean of its divisors is an integer number (145580736).

Almost surely, 21131030023 is an apocalyptic number.

1131030023 is a deficient number, since it is larger than the sum of its proper divisors (33615865).

1131030023 is an equidigital number, since it uses as much as digits as its factorization.

1131030023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80233.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 1131030023 is about 33630.7898063664. The cubic root of 1131030023 is about 1041.8968166560.

Adding to 1131030023 its reverse (3200301311), we get a palindrome (4331331334).

The spelling of 1131030023 in words is "one billion, one hundred thirty-one million, thirty thousand, twenty-three".

Divisors: 1 37 383 14171 79813 2953081 30568379 1131030023