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531105238 = 2281994201
BaseRepresentation
bin11111101010000…
…000010111010110
31101000100221102101
4133222000113112
52041430331423
6124411232314
716106214526
oct3752002726
91330327371
10531105238
11252882254
12129a4869a
1386056171
1450771686
153195e7ad
hex1fa805d6

531105238 has 8 divisors (see below), whose sum is σ = 796948920. Its totient is φ = 265455600.

The previous prime is 531105227. The next prime is 531105241. The reversal of 531105238 is 832501135.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41463 + ... + 52738.

It is an arithmetic number, because the mean of its divisors is an integer number (99618615).

Almost surely, 2531105238 is an apocalyptic number.

531105238 is a deficient number, since it is larger than the sum of its proper divisors (265843682).

531105238 is a wasteful number, since it uses less digits than its factorization.

531105238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97022.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 531105238 is about 23045.7206005801. The cubic root of 531105238 is about 809.8293792939.

The spelling of 531105238 in words is "five hundred thirty-one million, one hundred five thousand, two hundred thirty-eight".

Divisors: 1 2 2819 5638 94201 188402 265552619 531105238