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122022017 = 139386309
BaseRepresentation
bin1110100010111…
…10100010000001
322111121100201222
413101132202001
5222214201032
620035204425
73011112215
oct721364201
9274540658
10122022017
1162972a47
1234a46715
131c3843a0
14122c4945
15aaa4a12
hex745e881

122022017 has 4 divisors (see below), whose sum is σ = 131408340. Its totient is φ = 112635696.

The previous prime is 122022007. The next prime is 122022037. The reversal of 122022017 is 710220221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15437041 + 106584976 = 3929^2 + 10324^2 .

It is a cyclic number.

It is not a de Polignac number, because 122022017 - 24 = 122022001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122021986 and 122022004.

It is not an unprimeable number, because it can be changed into a prime (122022007) 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, 4693142 + ... + 4693167.

It is an arithmetic number, because the mean of its divisors is an integer number (32852085).

Almost surely, 2122022017 is an apocalyptic number.

It is an amenable number.

122022017 is a deficient number, since it is larger than the sum of its proper divisors (9386323).

122022017 is an equidigital number, since it uses as much as digits as its factorization.

122022017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9386322.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 122022017 is about 11046.3576349854. The cubic root of 122022017 is about 495.9973998845.

Adding to 122022017 its reverse (710220221), we get a palindrome (832242238).

The spelling of 122022017 in words is "one hundred twenty-two million, twenty-two thousand, seventeen".

Divisors: 1 13 9386309 122022017