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15420601441 = 74746871129
BaseRepresentation
bin11100101110010001…
…11011010001100001
31110210200120201101201
432113020323101201
5223040133221231
611030101001201
71054064643460
oct162710732141
943720521351
1015420601441
1165a3589113
122ba43b3201
1315b9a2174b
14a6402c9d7
15603be7161
hex39723b461

15420601441 has 8 divisors (see below), whose sum is σ = 17998513920. Its totient is φ = 12936431328.

The previous prime is 15420601439. The next prime is 15420601463. The reversal of 15420601441 is 14410602451.

15420601441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15420601441 - 21 = 15420601439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15420602441) 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, 23435236 + ... + 23435893.

It is an arithmetic number, because the mean of its divisors is an integer number (2249814240).

Almost surely, 215420601441 is an apocalyptic number.

It is an amenable number.

15420601441 is a deficient number, since it is larger than the sum of its proper divisors (2577912479).

15420601441 is an equidigital number, since it uses as much as digits as its factorization.

15420601441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46871183.

The product of its (nonzero) digits is 3840, while the sum is 28.

The spelling of 15420601441 in words is "fifteen billion, four hundred twenty million, six hundred one thousand, four hundred forty-one".

Divisors: 1 7 47 329 46871129 328097903 2202943063 15420601441