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53400023 = 437117491
BaseRepresentation
bin1100101110110…
…1000111010111
310201111000001122
43023231013113
5102132300043
65144314155
71215615125
oct313550727
9121430048
1053400023
1128163256
1215a7295b
13b0a8b61
147140915
154a4c368
hex32ed1d7

53400023 has 8 divisors (see below), whose sum is σ = 55414656. Its totient is φ = 51420600.

The previous prime is 53400001. The next prime is 53400059. The reversal of 53400023 is 32000435.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53400023 - 210 = 53398999 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53399974 and 53400010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53400323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5693 + ... + 11798.

It is an arithmetic number, because the mean of its divisors is an integer number (6926832).

Almost surely, 253400023 is an apocalyptic number.

53400023 is a deficient number, since it is larger than the sum of its proper divisors (2014633).

53400023 is a wasteful number, since it uses less digits than its factorization.

53400023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17605.

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 53400023 is about 7307.5319362970. The cubic root of 53400023 is about 376.5712396507.

Adding to 53400023 its reverse (32000435), we get a palindrome (85400458).

The spelling of 53400023 in words is "fifty-three million, four hundred thousand, twenty-three".

Divisors: 1 43 71 3053 17491 752113 1241861 53400023