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36879142493 = 197187203769
BaseRepresentation
bin100010010110001010…
…110000111001011101
310112012011121112211102
4202112022300321131
51101012030024433
624535252002445
72443620352604
oct422612607135
9115164545742
1036879142493
1114705350666
127192900425
133629633a0b
141adbd04a3b
15e5ca1d4e8
hex8962b0e5d

36879142493 has 4 divisors (see below), whose sum is σ = 37066346460. Its totient is φ = 36691938528.

The previous prime is 36879142459. The next prime is 36879142549. The reversal of 36879142493 is 39424197863.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39424197863 = 274371436899.

It can be written as a sum of positive squares in 2 ways, for example, as 26573238169 + 10305904324 = 163013^2 + 101518^2 .

It is a cyclic number.

It is not a de Polignac number, because 36879142493 - 210 = 36879141469 is a prime.

It is a super-3 number, since 3×368791424933 (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36879142393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93601688 + ... + 93602081.

It is an arithmetic number, because the mean of its divisors is an integer number (9266586615).

Almost surely, 236879142493 is an apocalyptic number.

It is an amenable number.

36879142493 is a deficient number, since it is larger than the sum of its proper divisors (187203967).

36879142493 is a wasteful number, since it uses less digits than its factorization.

36879142493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187203966.

The product of its digits is 7838208, while the sum is 56.

The spelling of 36879142493 in words is "thirty-six billion, eight hundred seventy-nine million, one hundred forty-two thousand, four hundred ninety-three".

Divisors: 1 197 187203769 36879142493