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22387068 = 22321156533
BaseRepresentation
bin101010101100…
…1100101111100
31120010101021200
41111121211330
521212341233
62115455500
7361200264
oct125314574
946111250
1022387068
1111700810
1275b7590
13483aab2
142d8a7a4
151e73313
hex155997c

22387068 has 36 divisors (see below), whose sum is σ = 61735128. Its totient is φ = 6783840.

The previous prime is 22387049. The next prime is 22387093. The reversal of 22387068 is 86078322.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27871 + ... + 28662.

Almost surely, 222387068 is an apocalyptic number.

It is an amenable number.

22387068 is an abundant number, since it is smaller than the sum of its proper divisors (39348060).

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

22387068 is a wasteful number, since it uses less digits than its factorization.

22387068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56554 (or 56549 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 22387068 is about 4731.4974373870. The cubic root of 22387068 is about 281.8376914189.

The spelling of 22387068 in words is "twenty-two million, three hundred eighty-seven thousand, sixty-eight".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 44 66 99 132 198 396 56533 113066 169599 226132 339198 508797 621863 678396 1017594 1243726 1865589 2035188 2487452 3731178 5596767 7462356 11193534 22387068