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53422999 = 77631857
BaseRepresentation
bin1100101111001…
…0101110010111
310201112011120121
43023302232113
5102134013444
65145012411
71216042120
oct313625627
9121464517
1053422999
1128179543
1215a84107
13b0b6456
147149047
154a54084
hex32f2b97

53422999 has 4 divisors (see below), whose sum is σ = 61054864. Its totient is φ = 45791136.

The previous prime is 53422991. The next prime is 53423009. The reversal of 53422999 is 99922435.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99922435 = 519984487.

It is a cyclic number.

It is not a de Polignac number, because 53422999 - 23 = 53422991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53422991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3815922 + ... + 3815935.

It is an arithmetic number, because the mean of its divisors is an integer number (15263716).

Almost surely, 253422999 is an apocalyptic number.

53422999 is a deficient number, since it is larger than the sum of its proper divisors (7631865).

53422999 is an equidigital number, since it uses as much as digits as its factorization.

53422999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7631864.

The product of its digits is 174960, while the sum is 43.

The square root of 53422999 is about 7309.1038438375. The cubic root of 53422999 is about 376.6252400033.

The spelling of 53422999 in words is "fifty-three million, four hundred twenty-two thousand, nine hundred ninety-nine".

Divisors: 1 7 7631857 53422999