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53874993 = 3233189283
BaseRepresentation
bin1100110110000…
…1000100110001
310202101010121010
43031201010301
5102242444433
65202421133
71222633644
oct315410461
9122333533
1053874993
1128458097
12160617a9
13b2140c3
147225a5b
154ae2e63
hex3361131

53874993 has 32 divisors (see below), whose sum is σ = 78520320. Its totient is φ = 32757120.

The previous prime is 53874991. The next prime is 53875037. The reversal of 53874993 is 39947835.

It is not a de Polignac number, because 53874993 - 21 = 53874991 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53874991) 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, 190230 + ... + 190512.

It is an arithmetic number, because the mean of its divisors is an integer number (2453760).

Almost surely, 253874993 is an apocalyptic number.

It is an amenable number.

53874993 is a deficient number, since it is larger than the sum of its proper divisors (24645327).

53874993 is a wasteful number, since it uses less digits than its factorization.

53874993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429.

The product of its digits is 816480, while the sum is 48.

The square root of 53874993 is about 7339.9586511097. The cubic root of 53874993 is about 377.6844248925.

The spelling of 53874993 in words is "fifty-three million, eight hundred seventy-four thousand, nine hundred ninety-three".

Divisors: 1 3 23 31 69 89 93 267 283 713 849 2047 2139 2759 6141 6509 8277 8773 19527 25187 26319 63457 75561 190371 201779 579301 605337 780797 1737903 2342391 17958331 53874993