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54101869 = 431258183
BaseRepresentation
bin1100111001100…
…0011101101101
310202210122210221
43032120131231
5102322224434
65211331341
71224600253
oct316303555
9122718727
1054101869
11285a2598
1216150b51
13b293453
1472845d3
154b3a2b4
hex339876d

54101869 has 4 divisors (see below), whose sum is σ = 55360096. Its totient is φ = 52843644.

The previous prime is 54101867. The next prime is 54101891. The reversal of 54101869 is 96810145.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96810145 = 519362029.

It is a cyclic number.

It is not a de Polignac number, because 54101869 - 21 = 54101867 is a prime.

It is a super-2 number, since 2×541018692 = 5854024458586322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54101867) 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, 629049 + ... + 629134.

It is an arithmetic number, because the mean of its divisors is an integer number (13840024).

Almost surely, 254101869 is an apocalyptic number.

It is an amenable number.

54101869 is a deficient number, since it is larger than the sum of its proper divisors (1258227).

54101869 is a wasteful number, since it uses less digits than its factorization.

54101869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1258226.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 54101869 is about 7355.3972700324. The cubic root of 54101869 is about 378.2138451068.

The spelling of 54101869 in words is "fifty-four million, one hundred one thousand, eight hundred sixty-nine".

Divisors: 1 43 1258183 54101869