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102676803221 = 131783792391
BaseRepresentation
bin101111110100000000…
…0111010111010010101
3100211000201112000221202
41133220000322322111
53140240230200341
6115100304122245
710263266266346
oct1375000727225
9324021460852
10102676803221
113a5aa418a73
1217a96306385
1398b4263985
144d807760cd
152a0e23b79b
hex17e803ae95

102676803221 has 4 divisors (see below), whose sum is σ = 103460595744. Its totient is φ = 101893010700.

The previous prime is 102676803217. The next prime is 102676803241. The reversal of 102676803221 is 122308676201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 122308676201 = 500324447067.

It is a cyclic number.

It is not a de Polignac number, because 102676803221 - 22 = 102676803217 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 (102676803241) 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 3 ways as a sum of consecutive naturals, for example, 391896065 + ... + 391896326.

It is an arithmetic number, because the mean of its divisors is an integer number (25865148936).

Almost surely, 2102676803221 is an apocalyptic number.

It is an amenable number.

102676803221 is a deficient number, since it is larger than the sum of its proper divisors (783792523).

102676803221 is an equidigital number, since it uses as much as digits as its factorization.

102676803221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783792522.

The product of its (nonzero) digits is 48384, while the sum is 38.

The spelling of 102676803221 in words is "one hundred two billion, six hundred seventy-six million, eight hundred three thousand, two hundred twenty-one".

Divisors: 1 131 783792391 102676803221