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121311932 = 22717254857
BaseRepresentation
bin1110011101100…
…01001010111100
322110021021200112
413032301022330
5222023440212
620012045152
73002064050
oct716611274
9273237615
10121311932
11625284a5
12347637b8
131c196111
141217bc60
15a9b4422
hex73b12bc

121311932 has 24 divisors (see below), whose sum is σ = 256896864. Its totient is φ = 48932352.

The previous prime is 121311923. The next prime is 121311961. The reversal of 121311932 is 239113121.

It is a junction number, because it is equal to n+sod(n) for n = 121311898 and 121311907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126953 + ... + 127904.

It is an arithmetic number, because the mean of its divisors is an integer number (10704036).

Almost surely, 2121311932 is an apocalyptic number.

It is an amenable number.

121311932 is an abundant number, since it is smaller than the sum of its proper divisors (135584932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121311932 is a wasteful number, since it uses less digits than its factorization.

121311932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254885 (or 254883 counting only the distinct ones).

The product of its digits is 324, while the sum is 23.

The square root of 121311932 is about 11014.1696010185. The cubic root of 121311932 is about 495.0334052210.

The spelling of 121311932 in words is "one hundred twenty-one million, three hundred eleven thousand, nine hundred thirty-two".

Divisors: 1 2 4 7 14 17 28 34 68 119 238 476 254857 509714 1019428 1783999 3567998 4332569 7135996 8665138 17330276 30327983 60655966 121311932