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123001225 = 5222322063
BaseRepresentation
bin1110101010011…
…01100110001001
322120110002221221
413111031212021
5222442014400
620112202041
73022331104
oct725154611
9276402857
10123001225
1163481706
1235239321
131c637cb9
141249b73b
15abe9c1a
hex754d989

123001225 has 12 divisors (see below), whose sum is σ = 153212416. Its totient is φ = 97955280.

The previous prime is 123001223. The next prime is 123001237. The reversal of 123001225 is 522100321.

It is not a de Polignac number, because 123001225 - 21 = 123001223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123001199 and 123001208.

It is not an unprimeable number, because it can be changed into a prime (123001223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5457 + ... + 16606.

Almost surely, 2123001225 is an apocalyptic number.

It is an amenable number.

123001225 is a deficient number, since it is larger than the sum of its proper divisors (30211191).

123001225 is a wasteful number, since it uses less digits than its factorization.

123001225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22296 (or 22291 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 123001225 is about 11090.5917335370. The cubic root of 123001225 is about 497.3206343126.

Adding to 123001225 its reverse (522100321), we get a palindrome (645101546).

The spelling of 123001225 in words is "one hundred twenty-three million, one thousand, two hundred twenty-five".

Divisors: 1 5 25 223 1115 5575 22063 110315 551575 4920049 24600245 123001225