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121370149 = 237966797
BaseRepresentation
bin1110011101111…
…11011000100101
322110101020112201
413032333120211
5222032321044
620013214501
73002425555
oct716773045
9273336481
10121370149
116256820a
1234791431
131c1b6774
1412195165
15a9c67d4
hex73bf625

121370149 has 8 divisors (see below), whose sum is σ = 128252160. Its totient is φ = 114621936.

The previous prime is 121370141. The next prime is 121370167. The reversal of 121370149 is 941073121.

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 121370149 - 23 = 121370141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121370141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31582 + ... + 35215.

It is an arithmetic number, because the mean of its divisors is an integer number (16031520).

Almost surely, 2121370149 is an apocalyptic number.

It is an amenable number.

121370149 is a deficient number, since it is larger than the sum of its proper divisors (6882011).

121370149 is an equidigital number, since it uses as much as digits as its factorization.

121370149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66899.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 121370149 is about 11016.8121069573. The cubic root of 121370149 is about 495.1125805899.

The spelling of 121370149 in words is "one hundred twenty-one million, three hundred seventy thousand, one hundred forty-nine".

Divisors: 1 23 79 1817 66797 1536331 5276963 121370149