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472457812141481 = 1757926876262139
BaseRepresentation
bin110101101101100101010100…
…0000100000110010110101001
32021221211112012021001011222112
41223123022220010012112221
5443411222044402011411
64352500042250332105
7201341644010042045
oct15333125004062651
92257745167034875
10472457812141481
111275a3262005521
1244ba55a542a035
131738177151419a
148495119bb9025
153994aa2b2db8b
hex1adb2a81065a9

472457812141481 has 4 divisors (see below), whose sum is σ = 472484688421200. Its totient is φ = 472430935861764.

The previous prime is 472457812141453. The next prime is 472457812141493. The reversal of 472457812141481 is 184141218754274.

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.

It is a cyclic number.

It is not a de Polignac number, because 472457812141481 - 218 = 472457811879337 is a prime.

It is a super-2 number, since 2×4724578121414812 (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 472457812141481.

It is not an unprimeable number, because it can be changed into a prime (472457812140481) 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, 13438113491 + ... + 13438148648.

It is an arithmetic number, because the mean of its divisors is an integer number (118121172105300).

Almost surely, 2472457812141481 is an apocalyptic number.

It is an amenable number.

472457812141481 is a deficient number, since it is larger than the sum of its proper divisors (26876279719).

472457812141481 is a wasteful number, since it uses less digits than its factorization.

472457812141481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26876279718.

The product of its digits is 16056320, while the sum is 59.

The spelling of 472457812141481 in words is "four hundred seventy-two trillion, four hundred fifty-seven billion, eight hundred twelve million, one hundred forty-one thousand, four hundred eighty-one".

Divisors: 1 17579 26876262139 472457812141481