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121225376 = 2531122203
BaseRepresentation
bin1110011100111…
…00000010100000
322110002212221202
413032130002200
5222013203001
620010140332
73001253516
oct716340240
9273085852
10121225376
1162479468
12347216a8
131c1658bc
14121584b6
15a99896b
hex739c0a0

121225376 has 24 divisors (see below), whose sum is σ = 246363264. Its totient is φ = 58656960.

The previous prime is 121225369. The next prime is 121225381. The reversal of 121225376 is 673522121.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60110 + ... + 62093.

It is an arithmetic number, because the mean of its divisors is an integer number (10265136).

Almost surely, 2121225376 is an apocalyptic number.

121225376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

121225376 is an abundant number, since it is smaller than the sum of its proper divisors (125137888).

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

121225376 is a wasteful number, since it uses less digits than its factorization.

121225376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122244 (or 122236 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 121225376 is about 11010.2395977563. The cubic root of 121225376 is about 494.9156418500.

Adding to 121225376 its reverse (673522121), we get a palindrome (794747497).

The spelling of 121225376 in words is "one hundred twenty-one million, two hundred twenty-five thousand, three hundred seventy-six".

Divisors: 1 2 4 8 16 31 32 62 124 248 496 992 122203 244406 488812 977624 1955248 3788293 3910496 7576586 15153172 30306344 60612688 121225376