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22406930 = 2571324623
BaseRepresentation
bin101010101111…
…0011100010010
31120011101112022
41111132130102
521214010210
62120131442
7361312220
oct125363422
946141468
1022406930
1111714727
127606b82
134846b50
142d93b10
151e79155
hex155e712

22406930 has 32 divisors (see below), whose sum is σ = 49641984. Its totient is φ = 7091136.

The previous prime is 22406927. The next prime is 22406933. The reversal of 22406930 is 3960422.

It is an interprime number because it is at equal distance from previous prime (22406927) and next prime (22406933).

It is a Harshad number since it is a multiple of its sum of digits (26).

22406930 is a modest number, since divided by 6930 gives 2240 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 22406930.

It is not an unprimeable number, because it can be changed into a prime (22406933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11402 + ... + 13221.

It is an arithmetic number, because the mean of its divisors is an integer number (1551312).

Almost surely, 222406930 is an apocalyptic number.

22406930 is an abundant number, since it is smaller than the sum of its proper divisors (27235054).

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

22406930 is a wasteful number, since it uses less digits than its factorization.

22406930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24650.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 22406930 is about 4733.5958847371. The cubic root of 22406930 is about 281.9210163925.

The spelling of 22406930 in words is "twenty-two million, four hundred six thousand, nine hundred thirty".

Divisors: 1 2 5 7 10 13 14 26 35 65 70 91 130 182 455 910 24623 49246 123115 172361 246230 320099 344722 640198 861805 1600495 1723610 2240693 3200990 4481386 11203465 22406930