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1223300023 = 11111209093
BaseRepresentation
bin100100011101010…
…0001001110110111
310011020212002011021
41020322201032313
510001131100043
6321215322011
742212610241
oct11072411667
93136762137
101223300023
11578580460
122a1820307
1316659198a
14b8677091
15725de3ed
hex48ea13b7

1223300023 has 4 divisors (see below), whose sum is σ = 1334509128. Its totient is φ = 1112090920.

The previous prime is 1223299993. The next prime is 1223300027. The reversal of 1223300023 is 3200033221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1223300023 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 (1223300027) 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, 55604536 + ... + 55604557.

It is an arithmetic number, because the mean of its divisors is an integer number (333627282).

Almost surely, 21223300023 is an apocalyptic number.

1223300023 is a deficient number, since it is larger than the sum of its proper divisors (111209105).

1223300023 is a wasteful number, since it uses less digits than its factorization.

1223300023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111209104.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 1223300023 is about 34975.7061830065. The cubic root of 1223300023 is about 1069.4922979348.

Adding to 1223300023 its reverse (3200033221), we get a palindrome (4423333244).

The spelling of 1223300023 in words is "one billion, two hundred twenty-three million, three hundred thousand, twenty-three".

Divisors: 1 11 111209093 1223300023