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10227945 = 3571359127
BaseRepresentation
bin100111000001…
…000011101001
3201020122002210
4213001003221
510104243240
61003115333
7152636040
oct47010351
921218083
1010227945
115856452
123512b49
132171550
141503557
15d70780
hex9c10e9

10227945 has 64 divisors (see below), whose sum is σ = 20643840. Its totient is φ = 4209408.

The previous prime is 10227929. The next prime is 10227953. The reversal of 10227945 is 54972201.

It is not a de Polignac number, because 10227945 - 24 = 10227929 is a prime.

It is a super-2 number, since 2×102279452 = 209221717846050, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 80472 + ... + 80598.

It is an arithmetic number, because the mean of its divisors is an integer number (322560).

Almost surely, 210227945 is an apocalyptic number.

10227945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10227945 is an abundant number, since it is smaller than the sum of its proper divisors (10415895).

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

10227945 is a wasteful number, since it uses less digits than its factorization.

10227945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 10227945 is about 3198.1158515601. The cubic root of 10227945 is about 217.0681615320.

The spelling of 10227945 in words is "ten million, two hundred twenty-seven thousand, nine hundred forty-five".

Divisors: 1 3 5 7 13 15 21 35 39 59 65 91 105 127 177 195 273 295 381 413 455 635 767 885 889 1239 1365 1651 1905 2065 2301 2667 3835 4445 4953 5369 6195 7493 8255 11505 11557 13335 16107 22479 24765 26845 34671 37465 52451 57785 80535 97409 112395 157353 173355 262255 292227 487045 681863 786765 1461135 2045589 3409315 10227945