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531314430253 = 2384172228509
BaseRepresentation
bin1111011101101001100…
…11101101000100101101
31212210102012211120221121
413232310303231010231
532201112443232003
61044025452100541
753246316066355
oct7566463550455
91783365746847
10531314430253
11195369165422
1286b80164751
133b144931049
141ba04067b65
15dc49d4ccbd
hex7bb4ced12d

531314430253 has 4 divisors (see below), whose sum is σ = 531316897180. Its totient is φ = 531311963328.

The previous prime is 531314430233. The next prime is 531314430259. The reversal of 531314430253 is 352034413135.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 399427792009 + 131886638244 = 632003^2 + 363162^2 .

It is a cyclic number.

It is not a de Polignac number, because 531314430253 - 29 = 531314429741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531314430259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 875838 + ... + 1352671.

It is an arithmetic number, because the mean of its divisors is an integer number (132829224295).

Almost surely, 2531314430253 is an apocalyptic number.

It is an amenable number.

531314430253 is a deficient number, since it is larger than the sum of its proper divisors (2466927).

531314430253 is a wasteful number, since it uses less digits than its factorization.

531314430253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2466926.

The product of its (nonzero) digits is 64800, while the sum is 34.

Adding to 531314430253 its reverse (352034413135), we get a palindrome (883348843388).

The spelling of 531314430253 in words is "five hundred thirty-one billion, three hundred fourteen million, four hundred thirty thousand, two hundred fifty-three".

Divisors: 1 238417 2228509 531314430253