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5430131581 = 719371103461
BaseRepresentation
bin1010000111010100…
…10011101101111101
3112000102202021011111
411003222103231331
542110103202311
62254454322021
7251364233260
oct50352235575
915012667144
105430131581
112337193256
121076659311
13686cc0014
1439726acd7
1521babcd21
hex143a93b7d

5430131581 has 16 divisors (see below), whose sum is σ = 6709048960. Its totient is φ = 4290252480.

The previous prime is 5430131561. The next prime is 5430131591. The reversal of 5430131581 is 1851310345.

It is a cyclic number.

It is not a de Polignac number, because 5430131581 - 25 = 5430131549 is a prime.

It is a super-2 number, since 2×54301315812 = 58972657973947119122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5430131501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 546810 + ... + 556651.

It is an arithmetic number, because the mean of its divisors is an integer number (419315560).

Almost surely, 25430131581 is an apocalyptic number.

It is an amenable number.

5430131581 is a deficient number, since it is larger than the sum of its proper divisors (1278917379).

5430131581 is a wasteful number, since it uses less digits than its factorization.

5430131581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103524.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 5430131581 is about 73689.4265210417. The cubic root of 5430131581 is about 1757.6677507020.

The spelling of 5430131581 in words is "five billion, four hundred thirty million, one hundred thirty-one thousand, five hundred eighty-one".

Divisors: 1 7 19 37 133 259 703 4921 1103461 7724227 20965759 40828057 146760313 285796399 775733083 5430131581