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120423401 = 717203343
BaseRepresentation
bin1110010110110…
…00001111101001
322101121010211222
413023120033221
5221312022101
615541031425
72661403430
oct713301751
9271533758
10120423401
1161a8097a
12343b5575
131bc44867
1411dca117
15a88b01b
hex72d83e9

120423401 has 4 divisors (see below), whose sum is σ = 137626752. Its totient is φ = 103220052.

The previous prime is 120423383. The next prime is 120423403. The reversal of 120423401 is 104324021.

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.

It is a cyclic number.

It is not a de Polignac number, because 120423401 - 226 = 53314537 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120423401.

It is not an unprimeable number, because it can be changed into a prime (120423403) 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, 8601665 + ... + 8601678.

It is an arithmetic number, because the mean of its divisors is an integer number (34406688).

Almost surely, 2120423401 is an apocalyptic number.

It is an amenable number.

120423401 is a deficient number, since it is larger than the sum of its proper divisors (17203351).

120423401 is an equidigital number, since it uses as much as digits as its factorization.

120423401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17203350.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 120423401 is about 10973.7596565626. The cubic root of 120423401 is about 493.8218431805.

Adding to 120423401 its reverse (104324021), we get a palindrome (224747422).

The spelling of 120423401 in words is "one hundred twenty million, four hundred twenty-three thousand, four hundred one".

Divisors: 1 7 17203343 120423401