Search a number
-
+
122214681 = 3213579409
BaseRepresentation
bin1110100100011…
…01100100011001
322111222011000200
413102031210121
5222241332211
620043252413
73012544011
oct722154431
9274864020
10122214681
1162a94776
1234b1a109
131c420ca4
1412334c41
15aae1b56
hex748d919

122214681 has 6 divisors (see below), whose sum is σ = 176532330. Its totient is φ = 81476448.

The previous prime is 122214667. The next prime is 122214689. The reversal of 122214681 is 186412221.

It can be written as a sum of positive squares in only one way, i.e., 110250000 + 11964681 = 10500^2 + 3459^2 .

It is not a de Polignac number, because 122214681 - 27 = 122214553 is a prime.

It is a super-2 number, since 2×1222146812 = 29872856503863522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122214689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6789696 + ... + 6789713.

It is an arithmetic number, because the mean of its divisors is an integer number (29422055).

Almost surely, 2122214681 is an apocalyptic number.

It is an amenable number.

122214681 is a deficient number, since it is larger than the sum of its proper divisors (54317649).

122214681 is a wasteful number, since it uses less digits than its factorization.

122214681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13579415 (or 13579412 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 122214681 is about 11055.0748979824. The cubic root of 122214681 is about 496.2583107018.

The spelling of 122214681 in words is "one hundred twenty-two million, two hundred fourteen thousand, six hundred eighty-one".

Divisors: 1 3 9 13579409 40738227 122214681