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1066645212 = 223177173643
BaseRepresentation
bin111111100100111…
…011011011011100
32202100002012011020
4333210323123130
54141030121322
6253501524140
735301222543
oct7744733334
92670065136
101066645212
114a8103376
12259273650
1313cca2a19
14a193915a
156399805c
hex3f93b6dc

1066645212 has 48 divisors (see below), whose sum is σ = 2672393472. Its totient is φ = 329916160.

The previous prime is 1066645169. The next prime is 1066645249. The reversal of 1066645212 is 2125466601.

It is a super-2 number, since 2×10666452122 = 2275464016565049888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22338 + ... + 51305.

It is an arithmetic number, because the mean of its divisors is an integer number (55674864).

Almost surely, 21066645212 is an apocalyptic number.

1066645212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1066645212 is an abundant number, since it is smaller than the sum of its proper divisors (1605748260).

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

1066645212 is a wasteful number, since it uses less digits than its factorization.

1066645212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73738 (or 73736 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 1066645212 is about 32659.5347792953. The cubic root of 1066645212 is about 1021.7390594315.

The spelling of 1066645212 in words is "one billion, sixty-six million, six hundred forty-five thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 17 34 51 68 71 102 142 204 213 284 426 852 1207 2414 3621 4828 7242 14484 73643 147286 220929 294572 441858 883716 1251931 2503862 3755793 5007724 5228653 7511586 10457306 15023172 15685959 20914612 31371918 62743836 88887101 177774202 266661303 355548404 533322606 1066645212