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38680225475453 = 172275307380909
BaseRepresentation
bin10001100101101111100010…
…00110010110101101111101
312001221210102102022122000022
420302313301012112231331
520032214100210203303
6214133241131541525
711101361021505062
oct1062676106265575
9161853372278008
1038680225475453
1111363211986a11
1244085a12ba8a5
1318776b672c433
1497a1c097cc69
15471264c68438
hex232df1196b7d

38680225475453 has 4 divisors (see below), whose sum is σ = 40955532856380. Its totient is φ = 36404918094528.

The previous prime is 38680225475443. The next prime is 38680225475533. The reversal of 38680225475453 is 35457452208683.

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 21243738282649 + 17436487192804 = 4609093^2 + 4175702^2 .

It is a cyclic number.

It is not a de Polignac number, because 38680225475453 - 226 = 38680158366589 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 (38680225475443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1137653690438 + ... + 1137653690471.

It is an arithmetic number, because the mean of its divisors is an integer number (10238883214095).

Almost surely, 238680225475453 is an apocalyptic number.

It is an amenable number.

38680225475453 is a deficient number, since it is larger than the sum of its proper divisors (2275307380927).

38680225475453 is a wasteful number, since it uses less digits than its factorization.

38680225475453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2275307380926.

The product of its (nonzero) digits is 193536000, while the sum is 62.

The spelling of 38680225475453 in words is "thirty-eight trillion, six hundred eighty billion, two hundred twenty-five million, four hundred seventy-five thousand, four hundred fifty-three".

Divisors: 1 17 2275307380909 38680225475453