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121310032 = 2471106787
BaseRepresentation
bin1110011101100…
…00101101010000
322110021012002011
413032300231100
5222023410112
620012032304
73002055364
oct716605520
9273235064
10121310032
1162527028
1234762694
131c1952ac
141217b2a4
15a9b3aa7
hex73b0b50

121310032 has 20 divisors (see below), whose sum is σ = 238350816. Its totient is φ = 59800160.

The previous prime is 121309997. The next prime is 121310069. The reversal of 121310032 is 230013121.

It is a super-2 number, since 2×1213100322 = 29432247727682048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121309994 and 121310021.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 52258 + ... + 54529.

Almost surely, 2121310032 is an apocalyptic number.

It is an amenable number.

121310032 is a deficient number, since it is larger than the sum of its proper divisors (117040784).

121310032 is a wasteful number, since it uses less digits than its factorization.

121310032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106866 (or 106860 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 121310032 is about 11014.0833481502. The cubic root of 121310032 is about 495.0308207861.

Adding to 121310032 its reverse (230013121), we get a palindrome (351323153).

The spelling of 121310032 in words is "one hundred twenty-one million, three hundred ten thousand, thirty-two".

Divisors: 1 2 4 8 16 71 142 284 568 1136 106787 213574 427148 854296 1708592 7581877 15163754 30327508 60655016 121310032