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120920923 = 297357119
BaseRepresentation
bin1110011010100…
…01101101011011
322102112102022201
413031101231123
5221423432143
615555431031
72665545064
oct715215533
9272472281
10120920923
1162290752
12345b5477
131c08a156
14120b956b
15a93864d
hex7351b5b

120920923 has 8 divisors (see below), whose sum is σ = 126806400. Its totient is φ = 115149888.

The previous prime is 120920903. The next prime is 120920927. The reversal of 120920923 is 329029021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-120920923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120920891 and 120920900.

It is not an unprimeable number, because it can be changed into a prime (120920927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26443 + ... + 30676.

It is an arithmetic number, because the mean of its divisors is an integer number (15850800).

Almost surely, 2120920923 is an apocalyptic number.

120920923 is a deficient number, since it is larger than the sum of its proper divisors (5885477).

120920923 is an equidigital number, since it uses as much as digits as its factorization.

120920923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57221.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 120920923 is about 10996.4050034545. The cubic root of 120920923 is about 494.5009738040.

Adding to 120920923 its reverse (329029021), we get a palindrome (449949944).

The spelling of 120920923 in words is "one hundred twenty million, nine hundred twenty thousand, nine hundred twenty-three".

Divisors: 1 29 73 2117 57119 1656451 4169687 120920923