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1307981055 = 35298813413
BaseRepresentation
bin100110111110110…
…0011010011111111
310101011012022200210
41031331203103333
510134320343210
6333442323503
744261440563
oct11575432377
93334168623
101307981055
11611359587
12306059593
1317aca08b4
14c59db6a3
1579c69e20
hex4df634ff

1307981055 has 32 divisors (see below), whose sum is σ = 2168026560. Its totient is φ = 672573440.

The previous prime is 1307981053. The next prime is 1307981063. The reversal of 1307981055 is 5501897031.

It is not a de Polignac number, because 1307981055 - 21 = 1307981053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1307981053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 381529 + ... + 384941.

It is an arithmetic number, because the mean of its divisors is an integer number (67750830).

Almost surely, 21307981055 is an apocalyptic number.

1307981055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1307981055 is a deficient number, since it is larger than the sum of its proper divisors (860045505).

1307981055 is a wasteful number, since it uses less digits than its factorization.

1307981055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4331.

The product of its (nonzero) digits is 37800, while the sum is 39.

The square root of 1307981055 is about 36166.0207238784. The cubic root of 1307981055 is about 1093.6217809751.

The spelling of 1307981055 in words is "one billion, three hundred seven million, nine hundred eighty-one thousand, fifty-five".

Divisors: 1 3 5 15 29 87 145 435 881 2643 3413 4405 10239 13215 17065 25549 51195 76647 98977 127745 296931 383235 494885 1484655 3006853 9020559 15034265 45102795 87198737 261596211 435993685 1307981055