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120231404 = 2230057851
BaseRepresentation
bin1110010101010…
…01010111101100
322101020101110222
413022221113230
5221234401104
615532550512
72656643606
oct712512754
9271211428
10120231404
116195a6a7
1234322438
131bba8357
1411d7a176
15a84e1be
hex72a95ec

120231404 has 6 divisors (see below), whose sum is σ = 210404964. Its totient is φ = 60115700.

The previous prime is 120231359. The next prime is 120231409. The reversal of 120231404 is 404132021.

It is a super-2 number, since 2×1202314042 = 28911181015622432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120231409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15028922 + ... + 15028929.

It is an arithmetic number, because the mean of its divisors is an integer number (35067494).

Almost surely, 2120231404 is an apocalyptic number.

It is an amenable number.

120231404 is a deficient number, since it is larger than the sum of its proper divisors (90173560).

120231404 is a wasteful number, since it uses less digits than its factorization.

120231404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30057855 (or 30057853 counting only the distinct ones).

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

The square root of 120231404 is about 10965.0081623317. The cubic root of 120231404 is about 493.5592620313.

Adding to 120231404 its reverse (404132021), we get a palindrome (524363425).

The spelling of 120231404 in words is "one hundred twenty million, two hundred thirty-one thousand, four hundred four".

Divisors: 1 2 4 30057851 60115702 120231404