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121220058 = 2329224023
BaseRepresentation
bin1110011100110…
…10101111011010
322110002121122210
413032122233122
5222013020213
620010055550
73001232151
oct716325732
9273077583
10121220058
1162475473
123471a5b6
131c16335b
1412156598
15a9970c3
hex739abda

121220058 has 24 divisors (see below), whose sum is σ = 251098848. Its totient is φ = 39011728.

The previous prime is 121220041. The next prime is 121220069. The reversal of 121220058 is 850022121.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 6966 + ... + 17057.

It is an arithmetic number, because the mean of its divisors is an integer number (10462452).

Almost surely, 2121220058 is an apocalyptic number.

121220058 is an abundant number, since it is smaller than the sum of its proper divisors (129878790).

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

121220058 is a wasteful number, since it uses less digits than its factorization.

121220058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24086 (or 24057 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 121220058 is about 11009.9980926429. The cubic root of 121220058 is about 494.9084046418.

Adding to 121220058 its reverse (850022121), we get a palindrome (971242179).

The spelling of 121220058 in words is "one hundred twenty-one million, two hundred twenty thousand, fifty-eight".

Divisors: 1 2 3 6 29 58 87 174 841 1682 2523 5046 24023 48046 72069 144138 696667 1393334 2090001 4180002 20203343 40406686 60610029 121220058