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22474949 = 767173277
BaseRepresentation
bin101010110111…
…1000011000101
31120021211211112
41111233003011
521223144244
62121414405
7362014430
oct125570305
946254745
1022474949
1111760842
12763a405
13486bab3
142db0817
151e8e39e
hex156f0c5

22474949 has 16 divisors (see below), whose sum is σ = 26314368. Its totient is φ = 18798912.

The previous prime is 22474943. The next prime is 22474973. The reversal of 22474949 is 94947422.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-22474949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22474943) 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, 80999 + ... + 81275.

It is an arithmetic number, because the mean of its divisors is an integer number (1644648).

Almost surely, 222474949 is an apocalyptic number.

It is an amenable number.

22474949 is a deficient number, since it is larger than the sum of its proper divisors (3839419).

22474949 is a wasteful number, since it uses less digits than its factorization.

22474949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524.

The product of its digits is 145152, while the sum is 41.

The square root of 22474949 is about 4740.7751475893. The cubic root of 22474949 is about 282.2059968961.

The spelling of 22474949 in words is "twenty-two million, four hundred seventy-four thousand, nine hundred forty-nine".

Divisors: 1 7 67 173 277 469 1211 1939 11591 18559 47921 81137 129913 335447 3210707 22474949