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542477407 = 2917185971
BaseRepresentation
bin100000010101011…
…000110001011111
31101210202201002211
4200111120301133
52102333234112
6125455101251
716304660533
oct4025306137
91353681084
10542477407
1125923a33a
12131811827
1388508464
1452091bc3
15329590a7
hex20558c5f

542477407 has 4 divisors (see below), whose sum is σ = 542666296. Its totient is φ = 542288520.

The previous prime is 542477389. The next prime is 542477449. The reversal of 542477407 is 704774245.

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

It is a cyclic number.

It is not a de Polignac number, because 542477407 - 211 = 542475359 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 542477407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542477477) 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, 90069 + ... + 95902.

It is an arithmetic number, because the mean of its divisors is an integer number (135666574).

Almost surely, 2542477407 is an apocalyptic number.

542477407 is a deficient number, since it is larger than the sum of its proper divisors (188889).

542477407 is a wasteful number, since it uses less digits than its factorization.

542477407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188888.

The product of its (nonzero) digits is 219520, while the sum is 40.

The square root of 542477407 is about 23291.1443900896. The cubic root of 542477407 is about 815.5687033989.

The spelling of 542477407 in words is "five hundred forty-two million, four hundred seventy-seven thousand, four hundred seven".

Divisors: 1 2917 185971 542477407