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542020254 = 232316212423
BaseRepresentation
bin100000010011101…
…001001010011110
31101202220111000020
4200103221022132
52102224122004
6125441213010
716301044656
oct4023511236
91352814006
10542020254
11258a57926
12131631166
13883a8359
1451db3366
15328b88d9
hex204e929e

542020254 has 32 divisors (see below), whose sum is σ = 1132337664. Its totient is φ = 172640160.

The previous prime is 542020253. The next prime is 542020261. The reversal of 542020254 is 452020245.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542020253) 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 15 ways as a sum of consecutive naturals, for example, 222487 + ... + 224909.

It is an arithmetic number, because the mean of its divisors is an integer number (35385552).

Almost surely, 2542020254 is an apocalyptic number.

542020254 is an abundant number, since it is smaller than the sum of its proper divisors (590317410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

542020254 is a wasteful number, since it uses less digits than its factorization.

542020254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4072.

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 542020254 is about 23281.3284414786. The cubic root of 542020254 is about 815.3395421128.

Adding to 542020254 its reverse (452020245), we get a palindrome (994040499).

Subtracting from 542020254 its reverse (452020245), we obtain a palindrome (90000009).

The spelling of 542020254 in words is "five hundred forty-two million, twenty thousand, two hundred fifty-four".

Divisors: 1 2 3 6 23 46 69 138 1621 2423 3242 4846 4863 7269 9726 14538 37283 55729 74566 111458 111849 167187 223698 334374 3927683 7855366 11783049 23566098 90336709 180673418 271010127 542020254