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120131433 = 3219702523
BaseRepresentation
bin1110010100100…
…00111101101001
322101001022100100
413022100331221
5221223201213
615530500013
72656046262
oct712207551
9271038310
10120131433
11618a1584
1234294609
131bb719b6
1411d51969
15a82e773
hex7290f69

120131433 has 12 divisors (see below), whose sum is σ = 182656240. Its totient is φ = 75872376.

The previous prime is 120131413. The next prime is 120131441. The reversal of 120131433 is 334131021.

120131433 is a `hidden beast` number, since 1 + 201 + 31 + 433 = 666.

It is not a de Polignac number, because 120131433 - 28 = 120131177 is a prime.

It is a super-2 number, since 2×1201314332 = 28863122389266978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120131413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 351091 + ... + 351432.

Almost surely, 2120131433 is an apocalyptic number.

It is an amenable number.

120131433 is a deficient number, since it is larger than the sum of its proper divisors (62524807).

120131433 is a wasteful number, since it uses less digits than its factorization.

120131433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702548 (or 702545 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 120131433 is about 10960.4485765866. The cubic root of 120131433 is about 493.4224278562.

Adding to 120131433 its reverse (334131021), we get a palindrome (454262454).

The spelling of 120131433 in words is "one hundred twenty million, one hundred thirty-one thousand, four hundred thirty-three".

Divisors: 1 3 9 19 57 171 702523 2107569 6322707 13347937 40043811 120131433