Search a number
-
+
12903711906 = 2318111881871
BaseRepresentation
bin11000000010001111…
…10000010010100010
31020022021121111000210
430001013300102202
5202411322240111
65532231154550
7634523512221
oct140107602242
936267544023
1012903711906
115521899818
122601515a56
1312a845a8b7
148a5a62cb8
15507c820a6
hex3011f04a2

12903711906 has 16 divisors (see below), whose sum is σ = 25950008448. Its totient is φ = 4277473200.

The previous prime is 12903711881. The next prime is 12903711911. The reversal of 12903711906 is 60911730921.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5939850 + ... + 5942021.

It is an arithmetic number, because the mean of its divisors is an integer number (1621875528).

Almost surely, 212903711906 is an apocalyptic number.

12903711906 is an abundant number, since it is smaller than the sum of its proper divisors (13046296542).

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

12903711906 is a wasteful number, since it uses less digits than its factorization.

12903711906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11882057.

The product of its (nonzero) digits is 20412, while the sum is 39.

The spelling of 12903711906 in words is "twelve billion, nine hundred three million, seven hundred eleven thousand, nine hundred six".

Divisors: 1 2 3 6 181 362 543 1086 11881871 23763742 35645613 71291226 2150618651 4301237302 6451855953 12903711906