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122069429 = 990112329
BaseRepresentation
bin1110100011010…
…10000110110101
322111200202202222
413101222012311
5222222210204
620040212125
73011400356
oct721520665
9274622688
10122069429
11629a5629
1234a6a045
131c39cb41
14122d7d2d
15aab3abe
hex746a1b5

122069429 has 4 divisors (see below), whose sum is σ = 122091660. Its totient is φ = 122047200.

The previous prime is 122069411. The next prime is 122069443. The reversal of 122069429 is 924960221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 924960221 = 1741531281.

It can be written as a sum of positive squares in 2 ways, for example, as 51122500 + 70946929 = 7150^2 + 8423^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-122069429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122069449) 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, 3737 + ... + 16065.

It is an arithmetic number, because the mean of its divisors is an integer number (30522915).

Almost surely, 2122069429 is an apocalyptic number.

It is an amenable number.

122069429 is a deficient number, since it is larger than the sum of its proper divisors (22231).

122069429 is an equidigital number, since it uses as much as digits as its factorization.

122069429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22230.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 122069429 is about 11048.5034733216. The cubic root of 122069429 is about 496.0616319638.

The spelling of 122069429 in words is "one hundred twenty-two million, sixty-nine thousand, four hundred twenty-nine".

Divisors: 1 9901 12329 122069429