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531202042 = 27515803
BaseRepresentation
bin11111101010010…
…111111111111010
31101000112212012201
4133222113333322
52041441431132
6124413300414
716110100000
oct3752277772
91330485181
10531202042
11252938a58
12129a9470a
138608b247
1450798a70
153197d2e7
hex1fa97ffa

531202042 has 24 divisors (see below), whose sum is σ = 929654496. Its totient is φ = 227643612.

The previous prime is 531202033. The next prime is 531202073. The reversal of 531202042 is 240202135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25713 + ... + 41515.

It is an arithmetic number, because the mean of its divisors is an integer number (38735604).

Almost surely, 2531202042 is an apocalyptic number.

531202042 is a deficient number, since it is larger than the sum of its proper divisors (398452454).

531202042 is an frugal number, since it uses more digits than its factorization.

531202042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15840 (or 15812 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 531202042 is about 23047.8207646623. The cubic root of 531202042 is about 809.8785785581.

Adding to 531202042 its reverse (240202135), we get a palindrome (771404177).

The spelling of 531202042 in words is "five hundred thirty-one million, two hundred two thousand, forty-two".

Divisors: 1 2 7 14 49 98 343 686 2401 4802 15803 16807 31606 33614 110621 221242 774347 1548694 5420429 10840858 37943003 75886006 265601021 531202042