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30970422 = 2327271907
BaseRepresentation
bin111011000100…
…1001000110110
32011021110102200
41312021020312
530412023142
63023445330
7524146530
oct166111066
964243380
1030970422
111653359a
12a456846
1365548c2
144182850
152abb64c
hex1d89236

30970422 has 48 divisors (see below), whose sum is σ = 77056512. Its totient is φ = 8806320.

The previous prime is 30970421. The next prime is 30970439. The reversal of 30970422 is 22407903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30970421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33693 + ... + 34599.

It is an arithmetic number, because the mean of its divisors is an integer number (1605344).

Almost surely, 230970422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30970422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38528256).

30970422 is an abundant number, since it is smaller than the sum of its proper divisors (46086090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30970422 is a wasteful number, since it uses less digits than its factorization.

30970422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193 (or 1190 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 30970422 is about 5565.1075461306. The cubic root of 30970422 is about 314.0381240307.

The spelling of 30970422 in words is "thirty million, nine hundred seventy thousand, four hundred twenty-two".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 126 271 542 813 907 1626 1814 1897 2439 2721 3794 4878 5442 5691 6349 8163 11382 12698 16326 17073 19047 34146 38094 57141 114282 245797 491594 737391 1474782 1720579 2212173 3441158 4424346 5161737 10323474 15485211 30970422