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531143041 = 11136735519
BaseRepresentation
bin11111101010001…
…001100110000001
31101000102212021111
4133222021212001
52041433034131
6124412123321
716106432662
oct3752114601
91330385244
10531143041
112528a86a0
12129a66541
138606a430
1450781369
153196aab1
hex1fa89981

531143041 has 16 divisors (see below), whose sum is σ = 625040640. Its totient is φ = 444971520.

The previous prime is 531143023. The next prime is 531143059. The reversal of 531143041 is 140341135.

It is an interprime number because it is at equal distance from previous prime (531143023) and next prime (531143059).

It is a cyclic number.

It is not a de Polignac number, because 531143041 - 211 = 531140993 is a prime.

It is a super-2 number, since 2×5311430412 = 564225860005455362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531143021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93480 + ... + 98998.

It is an arithmetic number, because the mean of its divisors is an integer number (39065040).

Almost surely, 2531143041 is an apocalyptic number.

It is an amenable number.

531143041 is a deficient number, since it is larger than the sum of its proper divisors (93897599).

531143041 is a wasteful number, since it uses less digits than its factorization.

531143041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6216.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 531143041 is about 23046.5407599492. The cubic root of 531143041 is about 809.8485928455.

Adding to 531143041 its reverse (140341135), we get a palindrome (671484176).

The spelling of 531143041 in words is "five hundred thirty-one million, one hundred forty-three thousand, forty-one".

Divisors: 1 11 13 143 673 5519 7403 8749 60709 71747 96239 789217 3714287 40857157 48285731 531143041