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121228841 = 4113122571
BaseRepresentation
bin1110011100111…
…00111000101001
322110010001201002
413032130320221
5222013310331
620010204345
73001266566
oct716347051
9273101632
10121228841
1162481028
12347236b5
131c167356
141215986d
15a9999cb
hex739ce29

121228841 has 8 divisors (see below), whose sum is σ = 125139168. Its totient is φ = 117364000.

The previous prime is 121228831. The next prime is 121228859. The reversal of 121228841 is 148822121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121228841 - 210 = 121227817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121228801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5915 + ... + 16656.

It is an arithmetic number, because the mean of its divisors is an integer number (15642396).

Almost surely, 2121228841 is an apocalyptic number.

It is an amenable number.

121228841 is a deficient number, since it is larger than the sum of its proper divisors (3910327).

121228841 is a wasteful number, since it uses less digits than its factorization.

121228841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22743.

The product of its digits is 2048, while the sum is 29.

The square root of 121228841 is about 11010.3969501558. The cubic root of 121228841 is about 494.9203572169.

The spelling of 121228841 in words is "one hundred twenty-one million, two hundred twenty-eight thousand, eight hundred forty-one".

Divisors: 1 41 131 5371 22571 925411 2956801 121228841