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120002797 = 472553251
BaseRepresentation
bin1110010011100…
…01100011101101
322100210202220001
413021301203231
5221210042142
615524024301
72655002245
oct711614355
9270722801
10120002797
1161813972
1234232091
131bb28295
1411d1ab25
15a8065b7
hex72718ed

120002797 has 4 divisors (see below), whose sum is σ = 122556096. Its totient is φ = 117449500.

The previous prime is 120002789. The next prime is 120002807. The reversal of 120002797 is 797200021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 797200021 = 3532258357.

It is a cyclic number.

It is not a de Polignac number, because 120002797 - 23 = 120002789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120002717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1276579 + ... + 1276672.

It is an arithmetic number, because the mean of its divisors is an integer number (30639024).

Almost surely, 2120002797 is an apocalyptic number.

It is an amenable number.

120002797 is a deficient number, since it is larger than the sum of its proper divisors (2553299).

120002797 is an equidigital number, since it uses as much as digits as its factorization.

120002797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2553298.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 120002797 is about 10954.5788143589. The cubic root of 120002797 is about 493.2462470559.

The spelling of 120002797 in words is "one hundred twenty million, two thousand, seven hundred ninety-seven".

Divisors: 1 47 2553251 120002797