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542762969 = 777537567
BaseRepresentation
bin100000010110011…
…110011111011001
31101211022012211012
4200112132133121
52102421403334
6125505143305
716310260220
oct4026363731
91354265735
10542762969
11259414941
1213192ab35
13885a8428
1452127cb7
15329b39ce
hex2059e7d9

542762969 has 4 divisors (see below), whose sum is σ = 620300544. Its totient is φ = 465225396.

The previous prime is 542762923. The next prime is 542762977. The reversal of 542762969 is 969267245.

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: 969267245 = 5193853449.

It is a cyclic number.

It is not a de Polignac number, because 542762969 - 28 = 542762713 is a prime.

It is a super-2 number, since 2×5427629692 = 589183281035389922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542762989) 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, 38768777 + ... + 38768790.

It is an arithmetic number, because the mean of its divisors is an integer number (155075136).

Almost surely, 2542762969 is an apocalyptic number.

It is an amenable number.

542762969 is a deficient number, since it is larger than the sum of its proper divisors (77537575).

542762969 is an equidigital number, since it uses as much as digits as its factorization.

542762969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77537574.

The product of its digits is 1632960, while the sum is 50.

The square root of 542762969 is about 23297.2738533932. The cubic root of 542762969 is about 815.7117843662.

The spelling of 542762969 in words is "five hundred forty-two million, seven hundred sixty-two thousand, nine hundred sixty-nine".

Divisors: 1 7 77537567 542762969