[go: up one dir, main page]

Search a number
-
+
54102557 = 194366221
BaseRepresentation
bin1100111001100…
…0101000011101
310202210200202102
43032120220131
5102322240212
65211334445
71224602255
oct316305035
9122720672
1054102557
11285a3063
1216151425
13b293862
147284965
154b3a5c2
hex3398a1d

54102557 has 8 divisors (see below), whose sum is σ = 58275360. Its totient is φ = 50062320.

The previous prime is 54102541. The next prime is 54102577. The reversal of 54102557 is 75520145.

54102557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 54102557 - 24 = 54102541 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 (54102577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32294 + ... + 33927.

It is an arithmetic number, because the mean of its divisors is an integer number (7284420).

Almost surely, 254102557 is an apocalyptic number.

It is an amenable number.

54102557 is a deficient number, since it is larger than the sum of its proper divisors (4172803).

54102557 is a wasteful number, since it uses less digits than its factorization.

54102557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66283.

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 54102557 is about 7355.4440382617. Note that the first 3 decimals coincide. The cubic root of 54102557 is about 378.2154483171.

The spelling of 54102557 in words is "fifty-four million, one hundred two thousand, five hundred fifty-seven".

Divisors: 1 19 43 817 66221 1258199 2847503 54102557