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23407985669 = 711201127449
BaseRepresentation
bin10101110011001110…
…011000010000000101
32020102100020212201012
4111303032120100011
5340414421020134
614430430212005
71456033411115
oct256316302005
966370225635
1023407985669
119a2221a102
124653354005
1322907684c3
1411c0b71045
1592004e6ce
hex573398405

23407985669 has 8 divisors (see below), whose sum is σ = 23740516800. Its totient is φ = 23075533600.

The previous prime is 23407985599. The next prime is 23407985683. The reversal of 23407985669 is 96658970432.

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 23407985669 - 220 = 23406937093 is a prime.

It is a super-2 number, since 2×234079856692 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23407985969) 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, 839057 + ... + 866505.

It is an arithmetic number, because the mean of its divisors is an integer number (2967564600).

Almost surely, 223407985669 is an apocalyptic number.

It is an amenable number.

23407985669 is a deficient number, since it is larger than the sum of its proper divisors (332531131).

23407985669 is a wasteful number, since it uses less digits than its factorization.

23407985669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39531.

The product of its (nonzero) digits is 19595520, while the sum is 59.

The spelling of 23407985669 in words is "twenty-three billion, four hundred seven million, nine hundred eighty-five thousand, six hundred sixty-nine".

Divisors: 1 71 12011 27449 852781 1948879 329689939 23407985669