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23220401806 = 272576453697
BaseRepresentation
bin10101101000000010…
…110011011010001110
32012221021021122000201
4111220002303122032
5340023410324211
614400045444114
71451265105310
oct255002633216
965837248021
1023220401806
119936347618
12460057063a
13226093a734
1411a3ca17b0
1590d8490c1
hex5680b368e

23220401806 has 16 divisors (see below), whose sum is σ = 39961298016. Its totient is φ = 9912877056.

The previous prime is 23220401797. The next prime is 23220401821. The reversal of 23220401806 is 60810402232.

23220401806 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3223251 + ... + 3230446.

It is an arithmetic number, because the mean of its divisors is an integer number (2497581126).

Almost surely, 223220401806 is an apocalyptic number.

23220401806 is a deficient number, since it is larger than the sum of its proper divisors (16740896210).

23220401806 is a wasteful number, since it uses less digits than its factorization.

23220401806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6453963.

The product of its (nonzero) digits is 4608, while the sum is 28.

The spelling of 23220401806 in words is "twenty-three billion, two hundred twenty million, four hundred one thousand, eight hundred six".

Divisors: 1 2 7 14 257 514 1799 3598 6453697 12907394 45175879 90351758 1658600129 3317200258 11610200903 23220401806