Search a number
-
+
122031031412 = 22157257756097
BaseRepresentation
bin111000110100110011…
…1011100010001110100
3102122222112220200211002
41301221213130101310
53444404421001122
6132021004302432
711550020436533
oct1615147342164
9378875820732
10122031031412
1147831377084
121b797b41a18
13b679c07cc4
145c98d9c31a
153293447992
hex1c699dc474

122031031412 has 24 divisors (see below), whose sum is σ = 215751052104. Its totient is φ = 60390899712.

The previous prime is 122031031399. The next prime is 122031031457. The reversal of 122031031412 is 214130130221.

It can be written as a sum of positive squares in 4 ways, for example, as 51872795536 + 70158235876 = 227756^2 + 264874^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216653 + ... + 539444.

It is an arithmetic number, because the mean of its divisors is an integer number (8989627171).

Almost surely, 2122031031412 is an apocalyptic number.

It is an amenable number.

122031031412 is a deficient number, since it is larger than the sum of its proper divisors (93720020692).

122031031412 is a wasteful number, since it uses less digits than its factorization.

122031031412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756515 (or 756513 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 122031031412 its reverse (214130130221), we get a palindrome (336161161633).

The spelling of 122031031412 in words is "one hundred twenty-two billion, thirty-one million, thirty-one thousand, four hundred twelve".

Divisors: 1 2 4 157 257 314 514 628 1028 40349 80698 161396 756097 1512194 3024388 118707229 194316929 237414458 388633858 474828916 777267716 30507757853 61015515706 122031031412