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660323023 = 2113838171
BaseRepresentation
bin100111010110111…
…011101011001111
31201000111212220021
4213112323223033
52323020314043
6145305003011
722235440003
oct4726735317
91630455807
10660323023
1130980a508
12165183467
13a6a598a9
14639aa703
153ce863ed
hex275bbacf

660323023 has 8 divisors (see below), whose sum is σ = 665266176. Its totient is φ = 655397400.

The previous prime is 660323021. The next prime is 660323029. The reversal of 660323023 is 320323066.

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 660323023 - 21 = 660323021 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 (660323021) 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, 76728 + ... + 84898.

It is an arithmetic number, because the mean of its divisors is an integer number (83158272).

Almost surely, 2660323023 is an apocalyptic number.

660323023 is a deficient number, since it is larger than the sum of its proper divisors (4943153).

660323023 is a wasteful number, since it uses less digits than its factorization.

660323023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8765.

The product of its (nonzero) digits is 3888, while the sum is 25.

The square root of 660323023 is about 25696.7512148910. The cubic root of 660323023 is about 870.8007877725.

Adding to 660323023 its reverse (320323066), we get a palindrome (980646089).

The spelling of 660323023 in words is "six hundred sixty million, three hundred twenty-three thousand, twenty-three".

Divisors: 1 211 383 8171 80813 1724081 3129493 660323023