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51942267 = 32133114321
BaseRepresentation
bin1100011000100…
…1001101111011
310121201221101200
43012021031323
5101244123032
65053145243
71200334116
oct306111573
9117657350
1051942267
1127357aa3
121548b223
13a9b8490
146c8157d
15486047c
hex318937b

51942267 has 24 divisors (see below), whose sum is σ = 83411328. Its totient is φ = 30931200.

The previous prime is 51942229. The next prime is 51942271. The reversal of 51942267 is 76224915.

It is not a de Polignac number, because 51942267 - 27 = 51942139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51942217) 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, 3534 + ... + 10787.

It is an arithmetic number, because the mean of its divisors is an integer number (3475472).

Almost surely, 251942267 is an apocalyptic number.

51942267 is a deficient number, since it is larger than the sum of its proper divisors (31469061).

51942267 is a wasteful number, since it uses less digits than its factorization.

51942267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14371 (or 14368 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 51942267 is about 7207.0983759069. The cubic root of 51942267 is about 373.1129305120.

The spelling of 51942267 in words is "fifty-one million, nine hundred forty-two thousand, two hundred sixty-seven".

Divisors: 1 3 9 13 31 39 93 117 279 403 1209 3627 14321 42963 128889 186173 443951 558519 1331853 1675557 3995559 5771363 17314089 51942267