Search a number
-
+
12280852077 = 313378510639
BaseRepresentation
bin10110110111111111…
…01110111001101101
31011200212120220222020
423123333232321231
5200122344231302
65350341140353
7613221343314
oct133377567155
934625526866
1012280852077
115232247a2a
1224689ba6b9
1312093b9ca0
1484704927b
154bd24aebc
hex2dbfeee6d

12280852077 has 16 divisors (see below), whose sum is σ = 18110641920. Its totient is φ = 7353191232.

The previous prime is 12280852069. The next prime is 12280852079. The reversal of 12280852077 is 77025808221.

It is not a de Polignac number, because 12280852077 - 23 = 12280852069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12280852079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4253877 + ... + 4256762.

It is an arithmetic number, because the mean of its divisors is an integer number (1131915120).

Almost surely, 212280852077 is an apocalyptic number.

It is an amenable number.

12280852077 is a deficient number, since it is larger than the sum of its proper divisors (5829789843).

12280852077 is a wasteful number, since it uses less digits than its factorization.

12280852077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8510692.

The product of its (nonzero) digits is 125440, while the sum is 42.

The spelling of 12280852077 in words is "twelve billion, two hundred eighty million, eight hundred fifty-two thousand, seventy-seven".

Divisors: 1 3 13 37 39 111 481 1443 8510639 25531917 110638307 314893643 331914921 944680929 4093617359 12280852077