Search a number
-
+
122262131 = 196434849
BaseRepresentation
bin1110100100110…
…01001001110011
322112001120010002
413102121021303
5222244342011
620044300215
73013132235
oct722311163
9275046102
10122262131
1163017392
1234b4166b
131c439774
1412348255
15ab00c3b
hex7499273

122262131 has 4 divisors (see below), whose sum is σ = 128697000. Its totient is φ = 115827264.

The previous prime is 122262103. The next prime is 122262137. The reversal of 122262131 is 131262221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131262221 = 159782193.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-122262131 is a prime.

It is a super-2 number, since 2×1222621312 = 29896057353322322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122262137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3217406 + ... + 3217443.

It is an arithmetic number, because the mean of its divisors is an integer number (32174250).

Almost surely, 2122262131 is an apocalyptic number.

122262131 is a deficient number, since it is larger than the sum of its proper divisors (6434869).

122262131 is an equidigital number, since it uses as much as digits as its factorization.

122262131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6434868.

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

The square root of 122262131 is about 11057.2207629223. The cubic root of 122262131 is about 496.3225266914.

The spelling of 122262131 in words is "one hundred twenty-two million, two hundred sixty-two thousand, one hundred thirty-one".

Divisors: 1 19 6434849 122262131