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120500575 = 52131013671
BaseRepresentation
bin1110010111010…
…11000101011111
322101202001201021
413023223011133
5221322004300
615542425011
72662144426
oct713530537
9271661637
10120500575
1162023958
1234432167
131bc70a20
141200a2bd
15a8a3d1a
hex72eb15f

120500575 has 24 divisors (see below), whose sum is σ = 162552096. Its totient is φ = 88080000.

The previous prime is 120500557. The next prime is 120500581. The reversal of 120500575 is 575005021.

It is a happy number.

It is not a de Polignac number, because 120500575 - 25 = 120500543 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30990 + ... + 34660.

It is an arithmetic number, because the mean of its divisors is an integer number (6773004).

Almost surely, 2120500575 is an apocalyptic number.

120500575 is a deficient number, since it is larger than the sum of its proper divisors (42051521).

120500575 is a wasteful number, since it uses less digits than its factorization.

120500575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3795 (or 3790 counting only the distinct ones).

The product of its (nonzero) digits is 1750, while the sum is 25.

The square root of 120500575 is about 10977.2753905512. The cubic root of 120500575 is about 493.9273101370.

Adding to 120500575 its reverse (575005021), we get a palindrome (695505596).

The spelling of 120500575 in words is "one hundred twenty million, five hundred thousand, five hundred seventy-five".

Divisors: 1 5 13 25 65 101 325 505 1313 2525 3671 6565 18355 32825 47723 91775 238615 370771 1193075 1853855 4820023 9269275 24100115 120500575