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23220434309 = 149202776883
BaseRepresentation
bin10101101000000010…
…111011010110000101
32012221021100021121112
4111220002323112011
5340023412344214
614400050254405
71451265302132
oct255002732605
965837307545
1023220434309
119936369a86
124600587405
13226094c477
1411a3cad589
1590d853a3e
hex5680bb585

23220434309 has 8 divisors (see below), whose sum is σ = 23388112800. Its totient is φ = 23052913936.

The previous prime is 23220434291. The next prime is 23220434329. The reversal of 23220434309 is 90343402232.

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 23220434309 - 212 = 23220430213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23220434329) 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, 263582 + ... + 340464.

It is an arithmetic number, because the mean of its divisors is an integer number (2923514100).

Almost surely, 223220434309 is an apocalyptic number.

It is an amenable number.

23220434309 is a deficient number, since it is larger than the sum of its proper divisors (167678491).

23220434309 is a wasteful number, since it uses less digits than its factorization.

23220434309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79059.

The product of its (nonzero) digits is 31104, while the sum is 32.

The spelling of 23220434309 in words is "twenty-three billion, two hundred twenty million, four hundred thirty-four thousand, three hundred nine".

Divisors: 1 149 2027 76883 302023 11455567 155841841 23220434309