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13278412701 = 341132695393
BaseRepresentation
bin11000101110111010…
…00111111110011101
31021021101200020220000
430113131013332131
5204143233201301
610033334244513
7650023434321
oct142735077635
937241606800
1013278412701
1156a4354aa4
1226a6ab6739
131337c81a48
148dd71d981
1552aae9786
hex317747f9d

13278412701 has 40 divisors (see below), whose sum is σ = 20089305720. Its totient is φ = 8739698688.

The previous prime is 13278412669. The next prime is 13278412709. The reversal of 13278412701 is 10721487231.

It can be written as a sum of positive squares in 4 ways, for example, as 100520676 + 13177892025 = 10026^2 + 114795^2 .

It is not a de Polignac number, because 13278412701 - 25 = 13278412669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13278412709) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2459461 + ... + 2464853.

It is an arithmetic number, because the mean of its divisors is an integer number (502232643).

Almost surely, 213278412701 is an apocalyptic number.

It is an amenable number.

13278412701 is a deficient number, since it is larger than the sum of its proper divisors (6810893019).

13278412701 is a wasteful number, since it uses less digits than its factorization.

13278412701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5787 (or 5778 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

Adding to 13278412701 its reverse (10721487231), we get a palindrome (23999899932).

The spelling of 13278412701 in words is "thirteen billion, two hundred seventy-eight million, four hundred twelve thousand, seven hundred one".

Divisors: 1 3 9 27 81 113 269 339 807 1017 2421 3051 5393 7263 9153 16179 21789 30397 48537 91191 145611 273573 436833 609409 820719 1450717 1828227 2462157 4352151 5484681 13056453 16454043 39169359 49362129 117508077 163931021 491793063 1475379189 4426137567 13278412701