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22255030 = 257232601
BaseRepresentation
bin101010011100…
…1010110110110
31112212200011101
41110321112312
521144130110
62113000314
7360110320
oct124712666
945780141
1022255030
1111620596
12755309a
1347c2975
142d54610
151e4913a
hex15395b6

22255030 has 48 divisors (see below), whose sum is σ = 47938464. Its totient is φ = 7286400.

The previous prime is 22255027. The next prime is 22255031. The reversal of 22255030 is 3055222.

It is a junction number, because it is equal to n+sod(n) for n = 22254989 and 22255007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22255031) 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, 36730 + ... + 37330.

It is an arithmetic number, because the mean of its divisors is an integer number (998718).

Almost surely, 222255030 is an apocalyptic number.

22255030 is an abundant number, since it is smaller than the sum of its proper divisors (25683434).

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

22255030 is a wasteful number, since it uses less digits than its factorization.

22255030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661 (or 638 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 22255030 is about 4717.5237148318. The cubic root of 22255030 is about 281.2825094931.

The spelling of 22255030 in words is "twenty-two million, two hundred fifty-five thousand, thirty".

Divisors: 1 2 5 7 10 14 23 35 46 70 115 161 230 322 529 601 805 1058 1202 1610 2645 3005 3703 4207 5290 6010 7406 8414 13823 18515 21035 27646 37030 42070 69115 96761 138230 193522 317929 483805 635858 967610 1589645 2225503 3179290 4451006 11127515 22255030