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9722230 = 257138889
BaseRepresentation
bin100101000101…
…100101110110
3200021221101121
4211011211312
54442102410
6544214154
7145431460
oct45054566
920257347
109722230
115540501
12330a35a
1320252cb
141411130
15cc09da
hex945976

9722230 has 16 divisors (see below), whose sum is σ = 20000160. Its totient is φ = 3333312.

The previous prime is 9722203. The next prime is 9722233. The reversal of 9722230 is 322279.

9722230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 9722195 and 9722204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9722233) 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, 69375 + ... + 69514.

It is an arithmetic number, because the mean of its divisors is an integer number (1250010).

Almost surely, 29722230 is an apocalyptic number.

9722230 is an abundant number, since it is smaller than the sum of its proper divisors (10277930).

9722230 is a wasteful number, since it uses less digits than its factorization.

9722230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138903.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 9722230 is about 3118.0490695305. The cubic root of 9722230 is about 213.4299177459.

The spelling of 9722230 in words is "nine million, seven hundred twenty-two thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 138889 277778 694445 972223 1388890 1944446 4861115 9722230