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120442425 = 3521984521
BaseRepresentation
bin1110010110111…
…00111000111001
322101122002221120
413023130320321
5221313124200
615541255453
72661513045
oct713347071
9271562846
10120442425
1161a941a4
1234404589
131bc5040c
1411dd3025
15a8919a0
hex72dce39

120442425 has 24 divisors (see below), whose sum is σ = 209614560. Its totient is φ = 60854400.

The previous prime is 120442411. The next prime is 120442429. The reversal of 120442425 is 524244021.

It is a happy number.

It is not a de Polignac number, because 120442425 - 216 = 120376889 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 120442395 and 120442404.

It is not an unprimeable number, because it can be changed into a prime (120442429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40836 + ... + 43685.

It is an arithmetic number, because the mean of its divisors is an integer number (8733940).

Almost surely, 2120442425 is an apocalyptic number.

120442425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120442425 is a deficient number, since it is larger than the sum of its proper divisors (89172135).

120442425 is a wasteful number, since it uses less digits than its factorization.

120442425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84553 (or 84548 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 120442425 is about 10974.6264173319. The cubic root of 120442425 is about 493.8478458013.

Adding to 120442425 its reverse (524244021), we get a palindrome (644686446).

The spelling of 120442425 in words is "one hundred twenty million, four hundred forty-two thousand, four hundred twenty-five".

Divisors: 1 3 5 15 19 25 57 75 95 285 475 1425 84521 253563 422605 1267815 1605899 2113025 4817697 6339075 8029495 24088485 40147475 120442425