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1301471725 = 52169730677
BaseRepresentation
bin100110110010010…
…1110000111101101
310100200221121120111
41031210232013231
510131134043400
6333051020021
744152220131
oct11544560755
93320847514
101301471725
11608712a74
12303a3a611
13179831b18
14c4bc53c1
15793d13ba
hex4d92e1ed

1301471725 has 12 divisors (see below), whose sum is σ = 1614828564. Its totient is φ = 1040529920.

The previous prime is 1301471723. The next prime is 1301471777. The reversal of 1301471725 is 5271741031.

It can be written as a sum of positive squares in 6 ways, for example, as 99740169 + 1201731556 = 9987^2 + 34666^2 .

It is not a de Polignac number, because 1301471725 - 21 = 1301471723 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 (1301471723) 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 11 ways as a sum of consecutive naturals, for example, 27087 + ... + 57763.

It is an arithmetic number, because the mean of its divisors is an integer number (134569047).

Almost surely, 21301471725 is an apocalyptic number.

It is an amenable number.

1301471725 is a deficient number, since it is larger than the sum of its proper divisors (313356839).

1301471725 is a wasteful number, since it uses less digits than its factorization.

1301471725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32384 (or 32379 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 1301471725 is about 36075.9161352834. The cubic root of 1301471725 is about 1091.8045816345.

The spelling of 1301471725 in words is "one billion, three hundred one million, four hundred seventy-one thousand, seven hundred twenty-five".

Divisors: 1 5 25 1697 8485 30677 42425 153385 766925 52058869 260294345 1301471725