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54131345 = 510826269
BaseRepresentation
bin1100111001111…
…1101010010001
310202212011020122
43032133222101
5102324200340
65212120025
71225052222
oct316375221
9122764218
1054131345
1128612754
1216166015
13b2a39a8
147291249
154b43db5
hex339fa91

54131345 has 4 divisors (see below), whose sum is σ = 64957620. Its totient is φ = 43305072.

The previous prime is 54131327. The next prime is 54131359. The reversal of 54131345 is 54313145.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34621456 + 19509889 = 5884^2 + 4417^2 .

It is a cyclic number.

It is not a de Polignac number, because 54131345 - 218 = 53869201 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5413130 + ... + 5413139.

It is an arithmetic number, because the mean of its divisors is an integer number (16239405).

Almost surely, 254131345 is an apocalyptic number.

It is an amenable number.

54131345 is a deficient number, since it is larger than the sum of its proper divisors (10826275).

54131345 is a wasteful number, since it uses less digits than its factorization.

54131345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10826274.

The product of its digits is 3600, while the sum is 26.

The square root of 54131345 is about 7357.4006958980. The cubic root of 54131345 is about 378.2825193042.

The spelling of 54131345 in words is "fifty-four million, one hundred thirty-one thousand, three hundred forty-five".

Divisors: 1 5 10826269 54131345