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61020448523 = 122953819227
BaseRepresentation
bin111000110101000110…
…100010011100001011
312211111121201221221222
4320311012202130023
51444432213323043
644010555552255
74260100153166
oct706506423413
9184447657858
1061020448523
11239734a8151
12b9ab75b68b
1359a5ca6998
142d4c204add
1518c2122d68
hexe351a270b

61020448523 has 8 divisors (see below), whose sum is σ = 61088068080. Its totient is φ = 60952860640.

The previous prime is 61020448483. The next prime is 61020448529. The reversal of 61020448523 is 32584402016.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61020448523 - 26 = 61020448459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61020448529) 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 7 ways as a sum of consecutive naturals, for example, 6608636 + ... + 6617862.

It is an arithmetic number, because the mean of its divisors is an integer number (7636008510).

Almost surely, 261020448523 is an apocalyptic number.

61020448523 is a deficient number, since it is larger than the sum of its proper divisors (67619557).

61020448523 is a wasteful number, since it uses less digits than its factorization.

61020448523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15837.

The product of its (nonzero) digits is 46080, while the sum is 35.

The spelling of 61020448523 in words is "sixty-one billion, twenty million, four hundred forty-eight thousand, five hundred twenty-three".

Divisors: 1 1229 5381 9227 6613249 11339983 49650487 61020448523