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121304292 = 22310108691
BaseRepresentation
bin1110011101011…
…11010011100100
322110020220012120
413032233103210
5222023214132
620011545540
73002032554
oct716572344
9273226176
10121304292
116252278a
123475b2b0
131c1927b5
1412179164
15a9b202c
hex73af4e4

121304292 has 12 divisors (see below), whose sum is σ = 283043376. Its totient is φ = 40434760.

The previous prime is 121304273. The next prime is 121304317. The reversal of 121304292 is 292403121.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5054334 + ... + 5054357.

It is an arithmetic number, because the mean of its divisors is an integer number (23586948).

Almost surely, 2121304292 is an apocalyptic number.

121304292 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121304292 is an abundant number, since it is smaller than the sum of its proper divisors (161739084).

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

121304292 is a wasteful number, since it uses less digits than its factorization.

121304292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10108698 (or 10108696 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 121304292 is about 11013.8227695928. The cubic root of 121304292 is about 495.0230129083.

The spelling of 121304292 in words is "one hundred twenty-one million, three hundred four thousand, two hundred ninety-two".

Divisors: 1 2 3 4 6 12 10108691 20217382 30326073 40434764 60652146 121304292