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120022123 = 139232471
BaseRepresentation
bin1110010011101…
…10010001101011
322100211202101211
413021312101223
5221211201443
615524253551
72655112504
oct711662153
9270752354
10120022123
1161827441
12342412b7
131bb34010
1411d23bab
15a80c19d
hex727646b

120022123 has 4 divisors (see below), whose sum is σ = 129254608. Its totient is φ = 110789640.

The previous prime is 120022103. The next prime is 120022127. The reversal of 120022123 is 321220021.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 120022123 - 225 = 86467691 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 9232471 = 120022123 / (1 + 2 + 0 + 0 + 2 + 2 + 1 + 2 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120022127) 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, 4616223 + ... + 4616248.

It is an arithmetic number, because the mean of its divisors is an integer number (32313652).

Almost surely, 2120022123 is an apocalyptic number.

120022123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

120022123 is a deficient number, since it is larger than the sum of its proper divisors (9232485).

120022123 is an equidigital number, since it uses as much as digits as its factorization.

120022123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9232484.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 120022123 is about 10955.4608757459. The cubic root of 120022123 is about 493.2727241201.

Adding to 120022123 its reverse (321220021), we get a palindrome (441242144).

The spelling of 120022123 in words is "one hundred twenty million, twenty-two thousand, one hundred twenty-three".

Divisors: 1 13 9232471 120022123