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120133457 = 2947531663
BaseRepresentation
bin1110010100100…
…01011101010001
322101001102010022
413022101131101
5221223232312
615530513225
72656055213
oct712213521
9271042108
10120133457
11618a3054
1234295815
131bb728b2
1411d525b3
15a830172
hex7291751

120133457 has 16 divisors (see below), whose sum is σ = 129392640. Its totient is φ = 111314112.

The previous prime is 120133421. The next prime is 120133459. The reversal of 120133457 is 754331021.

It is a cyclic number.

It is not a de Polignac number, because 120133457 - 210 = 120132433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120133459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71408 + ... + 73070.

It is an arithmetic number, because the mean of its divisors is an integer number (8087040).

Almost surely, 2120133457 is an apocalyptic number.

It is an amenable number.

120133457 is a deficient number, since it is larger than the sum of its proper divisors (9259183).

120133457 is a wasteful number, since it uses less digits than its factorization.

120133457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 120133457 is about 10960.5409081851. The cubic root of 120133457 is about 493.4251989360.

Adding to 120133457 its reverse (754331021), we get a palindrome (874464478).

The spelling of 120133457 in words is "one hundred twenty million, one hundred thirty-three thousand, four hundred fifty-seven".

Divisors: 1 29 47 53 1363 1537 1663 2491 48227 72239 78161 88139 2266669 2556031 4142533 120133457