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1307886012 = 223236330167
BaseRepresentation
bin100110111110100…
…1100000110111100
310101011000111022200
41031331030012330
510134304323022
6333440311500
744260563516
oct11575140674
93334014280
101307886012
116112a4134
12306012590
1317ac69564
14c59b4bb6
1579c4bbac
hex4df4c1bc

1307886012 has 18 divisors (see below), whose sum is σ = 3306045288. Its totient is φ = 435961992.

The previous prime is 1307886011. The next prime is 1307886023. The reversal of 1307886012 is 2106887031.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 36330167 = 1307886012 / (1 + 3 + 0 + 7 + 8 + 8 + 6 + 0 + 1 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1307886011) 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 5 ways as a sum of consecutive naturals, for example, 18165048 + ... + 18165119.

Almost surely, 21307886012 is an apocalyptic number.

1307886012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1307886012 is an abundant number, since it is smaller than the sum of its proper divisors (1998159276).

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

1307886012 is a wasteful number, since it uses less digits than its factorization.

1307886012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36330177 (or 36330172 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 1307886012 is about 36164.7067180145. The cubic root of 1307886012 is about 1093.5952913935.

The spelling of 1307886012 in words is "one billion, three hundred seven million, eight hundred eighty-six thousand, twelve".

Divisors: 1 2 3 4 6 9 12 18 36 36330167 72660334 108990501 145320668 217981002 326971503 435962004 653943006 1307886012