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56141904869 is a prime number
BaseRepresentation
bin110100010010010100…
…010111101111100101
312100220121220021011222
4310102110113233211
51404434311423434
641442523510125
74025151213641
oct642224275745
9170817807158
1056141904869
112189a707096
12aa69988345
1353a9361b6b
142a0831bc21
1516d8bad72e
hexd12517be5

56141904869 has 2 divisors, whose sum is σ = 56141904870. Its totient is φ = 56141904868.

The previous prime is 56141904827. The next prime is 56141904899. The reversal of 56141904869 is 96840914165.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51183632644 + 4958272225 = 226238^2 + 70415^2 .

It is a cyclic number.

It is not a de Polignac number, because 56141904869 - 228 = 55873469413 is a prime.

It is a super-2 number, since 2×561419048692 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56141904869.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56141904899) 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 as a sum of consecutive naturals, namely, 28070952434 + 28070952435.

It is an arithmetic number, because the mean of its divisors is an integer number (28070952435).

Almost surely, 256141904869 is an apocalyptic number.

It is an amenable number.

56141904869 is a deficient number, since it is larger than the sum of its proper divisors (1).

56141904869 is an equidigital number, since it uses as much as digits as its factorization.

56141904869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1866240, while the sum is 53.

The spelling of 56141904869 in words is "fifty-six billion, one hundred forty-one million, nine hundred four thousand, eight hundred sixty-nine".