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12901207278 = 232150201213
BaseRepresentation
bin11000000001111100…
…01100110011101110
31020022002220020022210
430000332030303232
5202410202113103
65532101351250
7634463311131
oct140076146356
936262806283
1012901207278
115520438a83
122600708526
1312a7a9187b
148a55b0218
15507939e03
hex300f8ccee

12901207278 has 8 divisors (see below), whose sum is σ = 25802414568. Its totient is φ = 4300402424.

The previous prime is 12901207229. The next prime is 12901207303. The reversal of 12901207278 is 87270210921.

12901207278 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.

12901207278 is an admirable number.

It is a super-2 number, since 2×129012072782 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1075100601 + ... + 1075100612.

It is an arithmetic number, because the mean of its divisors is an integer number (3225301821).

Almost surely, 212901207278 is an apocalyptic number.

12901207278 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12901207278 is a wasteful number, since it uses less digits than its factorization.

12901207278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2150201218.

The product of its (nonzero) digits is 28224, while the sum is 39.

The spelling of 12901207278 in words is "twelve billion, nine hundred one million, two hundred seven thousand, two hundred seventy-eight".

Divisors: 1 2 3 6 2150201213 4300402426 6450603639 12901207278