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122031425 = 5233114747
BaseRepresentation
bin1110100011000…
…00110101000001
322111121211122102
413101200311001
5222220001200
620035320145
73011151515
oct721406501
9274554572
10122031425
116297a01a
1234a50055
131c388759
14122c8145
15aaa76d5
hex7460d41

122031425 has 12 divisors (see below), whose sum is σ = 151786416. Its totient is φ = 97323600.

The previous prime is 122031421. The next prime is 122031451. The reversal of 122031425 is 524130221.

It is not a de Polignac number, because 122031425 - 22 = 122031421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122031397 and 122031406.

It is not an unprimeable number, because it can be changed into a prime (122031421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 902 + ... + 15648.

It is an arithmetic number, because the mean of its divisors is an integer number (12648868).

Almost surely, 2122031425 is an apocalyptic number.

It is an amenable number.

122031425 is a deficient number, since it is larger than the sum of its proper divisors (29754991).

122031425 is a wasteful number, since it uses less digits than its factorization.

122031425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15088 (or 15083 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 122031425 is about 11046.7834685034. The cubic root of 122031425 is about 496.0101468289.

Adding to 122031425 its reverse (524130221), we get a palindrome (646161646).

The spelling of 122031425 in words is "one hundred twenty-two million, thirty-one thousand, four hundred twenty-five".

Divisors: 1 5 25 331 1655 8275 14747 73735 368675 4881257 24406285 122031425