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54420693 = 3198311503
BaseRepresentation
bin1100111110011…
…0010011010101
310210101212011020
43033212103111
5102412430233
65222231353
71230365625
oct317462325
9123355136
1054420693
11287a0088
1216285559
13b3755c2
147328885
154b9e9b3
hex33e64d5

54420693 has 16 divisors (see below), whose sum is σ = 77306880. Its totient is φ = 33953904.

The previous prime is 54420661. The next prime is 54420701. The reversal of 54420693 is 39602445.

It is not a de Polignac number, because 54420693 - 25 = 54420661 is a prime.

It is a super-2 number, since 2×544206932 = 5923223653200498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54420193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1021 + ... + 10482.

It is an arithmetic number, because the mean of its divisors is an integer number (4831680).

Almost surely, 254420693 is an apocalyptic number.

It is an amenable number.

54420693 is a deficient number, since it is larger than the sum of its proper divisors (22886187).

54420693 is a wasteful number, since it uses less digits than its factorization.

54420693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11608.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 54420693 is about 7377.0382268225. The cubic root of 54420693 is about 378.9553324644.

The spelling of 54420693 in words is "fifty-four million, four hundred twenty thousand, six hundred ninety-three".

Divisors: 1 3 19 57 83 249 1577 4731 11503 34509 218557 655671 954749 2864247 18140231 54420693