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120140993 = 722451857
BaseRepresentation
bin1110010100100…
…11010011000001
322101001210110102
413022103103001
5221224002433
615531012145
72656116200
oct712232301
9271053412
10120140993
11618a8785
123429a055
131bb7615b
1411d55237
15a8324e8
hex72934c1

120140993 has 6 divisors (see below), whose sum is σ = 139755906. Its totient is φ = 102977952.

The previous prime is 120140963. The next prime is 120141019. The reversal of 120140993 is 399041021.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 91164304 + 28976689 = 9548^2 + 5383^2 .

It is not a de Polignac number, because 120140993 - 26 = 120140929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120140963) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1225880 + ... + 1225977.

It is an arithmetic number, because the mean of its divisors is an integer number (23292651).

Almost surely, 2120140993 is an apocalyptic number.

It is an amenable number.

120140993 is a deficient number, since it is larger than the sum of its proper divisors (19614913).

120140993 is an equidigital number, since it uses as much as digits as its factorization.

120140993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2451871 (or 2451864 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 120140993 is about 10960.8846814479. The cubic root of 120140993 is about 493.4355162799.

The spelling of 120140993 in words is "one hundred twenty million, one hundred forty thousand, nine hundred ninety-three".

Divisors: 1 7 49 2451857 17162999 120140993