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537987933 = 33717167441
BaseRepresentation
bin100000000100010…
…000101101011101
31101111022121201000
4200010100231131
52100211103213
6125214540513
716221551640
oct4004205535
91344277630
10537987933
1125675332a
12130207739
13875c5b72
1451643a57
153236dc73
hex20110b5d

537987933 has 32 divisors (see below), whose sum is σ = 964465920. Its totient is φ = 289336320.

The previous prime is 537987889. The next prime is 537987949. The reversal of 537987933 is 339789735.

It is a happy number.

537987933 is a `hidden beast` number, since 537 + 9 + 8 + 79 + 33 = 666.

It is not a de Polignac number, because 537987933 - 28 = 537987677 is a prime.

It is a super-2 number, since 2×5379879332 = 578862032107224978, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 537987933.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (537987133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80508 + ... + 86933.

It is an arithmetic number, because the mean of its divisors is an integer number (30139560).

Almost surely, 2537987933 is an apocalyptic number.

It is an amenable number.

537987933 is a deficient number, since it is larger than the sum of its proper divisors (426477987).

537987933 is a wasteful number, since it uses less digits than its factorization.

537987933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167474 (or 167468 counting only the distinct ones).

The product of its digits is 4286520, while the sum is 54.

The square root of 537987933 is about 23194.5668853721. The cubic root of 537987933 is about 813.3126206130.

The spelling of 537987933 in words is "five hundred thirty-seven million, nine hundred eighty-seven thousand, nine hundred thirty-three".

Divisors: 1 3 7 9 17 21 27 51 63 119 153 189 357 459 1071 3213 167441 502323 1172087 1506969 2846497 3516261 4520907 8539491 10548783 19925479 25618473 31646349 59776437 76855419 179329311 537987933