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122270669 = 858114249
BaseRepresentation
bin1110100100110…
…11001111001101
322112001222211022
413102123033031
5222300130134
620044403525
73013166153
oct722331715
9275058738
10122270669
1163022844
1234b465a5
131c440611
141234b3d3
15ab0352e
hex749b3cd

122270669 has 4 divisors (see below), whose sum is σ = 122293500. Its totient is φ = 122247840.

The previous prime is 122270663. The next prime is 122270683. The reversal of 122270669 is 966072221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 966072221 = 7113606651.

It can be written as a sum of positive squares in 2 ways, for example, as 30360100 + 91910569 = 5510^2 + 9587^2 .

It is a cyclic number.

It is not a de Polignac number, because 122270669 - 24 = 122270653 is a prime.

It is a super-2 number, since 2×1222706692 = 29900232995415122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122270663) 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, 1457 + ... + 15705.

It is an arithmetic number, because the mean of its divisors is an integer number (30573375).

Almost surely, 2122270669 is an apocalyptic number.

It is an amenable number.

122270669 is a deficient number, since it is larger than the sum of its proper divisors (22831).

122270669 is an equidigital number, since it uses as much as digits as its factorization.

122270669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22830.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 122270669 is about 11057.6068387332. The cubic root of 122270669 is about 496.3340797456.

The spelling of 122270669 in words is "one hundred twenty-two million, two hundred seventy thousand, six hundred sixty-nine".

Divisors: 1 8581 14249 122270669