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22750949 = 1321031307
BaseRepresentation
bin101011011001…
…0011011100101
31120210212102202
41112302123211
521311012244
62131344245
7364244204
oct126623345
946725382
1022750949
111192a141
127752085
134937600
14304323b
151ee604e
hex15b26e5

22750949 has 12 divisors (see below), whose sum is σ = 24893856. Its totient is φ = 20781072.

The previous prime is 22750927. The next prime is 22750951. The reversal of 22750949 is 94905722.

It is not a de Polignac number, because 22750949 - 212 = 22746853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22750919) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16754 + ... + 18060.

It is an arithmetic number, because the mean of its divisors is an integer number (2074488).

Almost surely, 222750949 is an apocalyptic number.

It is an amenable number.

22750949 is a deficient number, since it is larger than the sum of its proper divisors (2142907).

22750949 is a wasteful number, since it uses less digits than its factorization.

22750949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1436 (or 1423 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 22750949 is about 4769.7954882783. The cubic root of 22750949 is about 283.3564952999.

The spelling of 22750949 in words is "twenty-two million, seven hundred fifty thousand, nine hundred forty-nine".

Divisors: 1 13 103 169 1307 1339 16991 17407 134621 220883 1750073 22750949