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542444245 = 5717911671
BaseRepresentation
bin100000010101010…
…000101011010101
31101210201000121121
4200111100223111
52102331203440
6125454243541
716304462050
oct4025205325
91353630547
10542444245
11259217432
121317b65b1
13884c6335
1452083a97
153294e34a
hex20550ad5

542444245 has 16 divisors (see below), whose sum is σ = 787684608. Its totient is φ = 350081280.

The previous prime is 542444209. The next prime is 542444251.

542444245 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 542444245 - 27 = 542444117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 542444245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 455241 + ... + 456430.

It is an arithmetic number, because the mean of its divisors is an integer number (49230288).

Almost surely, 2542444245 is an apocalyptic number.

It is an amenable number.

542444245 is a deficient number, since it is larger than the sum of its proper divisors (245240363).

542444245 is a wasteful number, since it uses less digits than its factorization.

542444245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911700.

The product of its digits is 102400, while the sum is 34.

The square root of 542444245 is about 23290.4324777364. The cubic root of 542444245 is about 815.5520843102.

The spelling of 542444245 in words is "five hundred forty-two million, four hundred forty-four thousand, two hundred forty-five".

Divisors: 1 5 7 17 35 85 119 595 911671 4558355 6381697 15498407 31908485 77492035 108488849 542444245