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542102541 = 31673133457
BaseRepresentation
bin100000010011111…
…101010000001101
31101210001122212220
4200103331100031
52102234240131
6125443045553
716301536611
oct4023752015
91353048786
10542102541
11259003732
121316708b9
1388406946
1451dd5341
15328d2e96
hex204fd40d

542102541 has 16 divisors (see below), whose sum is σ = 729665664. Its totient is φ = 357986304.

The previous prime is 542102513. The next prime is 542102543. The reversal of 542102541 is 145201245.

It is a de Polignac number, because none of the positive numbers 2k-542102541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542102543) 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, 155085 + ... + 158541.

It is an arithmetic number, because the mean of its divisors is an integer number (45604104).

Almost surely, 2542102541 is an apocalyptic number.

It is an amenable number.

542102541 is a deficient number, since it is larger than the sum of its proper divisors (187563123).

542102541 is a wasteful number, since it uses less digits than its factorization.

542102541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3940.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 542102541 is about 23283.0956060400. The cubic root of 542102541 is about 815.3808003804.

Adding to 542102541 its reverse (145201245), we get a palindrome (687303786).

The spelling of 542102541 in words is "five hundred forty-two million, one hundred two thousand, five hundred forty-one".

Divisors: 1 3 167 313 501 939 3457 10371 52271 156813 577319 1082041 1731957 3246123 180700847 542102541