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272185012 = 221143263547
BaseRepresentation
bin10000001110010…
…011011010110100
3200222011102122101
4100032103122310
51024134410022
643001511444
76513351211
oct2016233264
9628142571
10272185012
1112a7066a0
12771a2584
134450c528
1428212b08
1518d67627
hex103936b4

272185012 has 48 divisors (see below), whose sum is σ = 534707712. Its totient is φ = 120163680.

The previous prime is 272185009. The next prime is 272185033. The reversal of 272185012 is 210581272.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

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, 497323 + ... + 497869.

It is an arithmetic number, because the mean of its divisors is an integer number (11139744).

Almost surely, 2272185012 is an apocalyptic number.

272185012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

272185012 is a deficient number, since it is larger than the sum of its proper divisors (262522700).

272185012 is a wasteful number, since it uses less digits than its factorization.

272185012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868 (or 866 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 272185012 is about 16498.0305491292. The cubic root of 272185012 is about 648.0692306514.

The spelling of 272185012 in words is "two hundred seventy-two million, one hundred eighty-five thousand, twelve".

Divisors: 1 2 4 11 22 43 44 86 172 263 473 526 547 946 1052 1094 1892 2188 2893 5786 6017 11309 11572 12034 22618 23521 24068 45236 47042 94084 124399 143861 248798 258731 287722 497596 517462 575444 1034924 1582471 3164942 6186023 6329884 12372046 24744092 68046253 136092506 272185012