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1223345023 = 3773452923
BaseRepresentation
bin100100011101010…
…1100001101111111
310011020221100212221
41020322230031333
510001134020043
6321220310211
742213155365
oct11072541577
93136840787
101223345023
1157860124a
122a1842367
131665a92c4
14b8689635
15725ec8ed
hex48eac37f

1223345023 has 8 divisors (see below), whose sum is σ = 1273622288. Its totient is φ = 1173973824.

The previous prime is 1223345009. The next prime is 1223345029. The reversal of 1223345023 is 3205433221.

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 1223345023 - 217 = 1223213951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223345029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223761 + ... + 229162.

It is an arithmetic number, because the mean of its divisors is an integer number (159202786).

Almost surely, 21223345023 is an apocalyptic number.

1223345023 is a deficient number, since it is larger than the sum of its proper divisors (50277265).

1223345023 is an equidigital number, since it uses as much as digits as its factorization.

1223345023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453033.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 1223345023 is about 34976.3494807563. The cubic root of 1223345023 is about 1069.5054117969.

Adding to 1223345023 its reverse (3205433221), we get a palindrome (4428778244).

The spelling of 1223345023 in words is "one billion, two hundred twenty-three million, three hundred forty-five thousand, twenty-three".

Divisors: 1 37 73 2701 452923 16758151 33063379 1223345023