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122108901 = 3234117387
BaseRepresentation
bin1110100011100…
…11101111100101
322111202202220220
413101303233211
5222224441101
620041114553
73011623425
oct721635745
9274682826
10122108901
1162a22252
1234a88a59
131c3b4ab5
1412308485
15aac0636
hex7473be5

122108901 has 8 divisors (see below), whose sum is σ = 162890784. Its totient is φ = 81366480.

The previous prime is 122108891. The next prime is 122108923. The reversal of 122108901 is 109801221.

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

It is not a de Polignac number, because 122108901 - 26 = 122108837 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122108941) 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, 1671 + ... + 15716.

It is an arithmetic number, because the mean of its divisors is an integer number (20361348).

Almost surely, 2122108901 is an apocalyptic number.

It is an amenable number.

122108901 is a deficient number, since it is larger than the sum of its proper divisors (40781883).

122108901 is a wasteful number, since it uses less digits than its factorization.

122108901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19731.

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 122108901 is about 11050.2896342132. The cubic root of 122108901 is about 496.1150945295.

The spelling of 122108901 in words is "one hundred twenty-two million, one hundred eight thousand, nine hundred one".

Divisors: 1 3 2341 7023 17387 52161 40702967 122108901