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121895048 = 23111385171
BaseRepresentation
bin1110100001111…
…11100010001000
322111100220120102
413100333202020
5222201120143
620032344532
73010043102
oct720774210
9274326512
10121895048
1162896610
12349a5148
131c33b662
1412290572
15aa7c0b8
hex743f888

121895048 has 16 divisors (see below), whose sum is σ = 249330960. Its totient is φ = 55406800.

The previous prime is 121895047. The next prime is 121895063. The reversal of 121895048 is 840598121.

It is not an unprimeable number, because it can be changed into a prime (121895047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 692498 + ... + 692673.

It is an arithmetic number, because the mean of its divisors is an integer number (15583185).

Almost surely, 2121895048 is an apocalyptic number.

It is an amenable number.

121895048 is an abundant number, since it is smaller than the sum of its proper divisors (127435912).

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

121895048 is a wasteful number, since it uses less digits than its factorization.

121895048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385188 (or 1385184 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 38.

The square root of 121895048 is about 11040.6090411716. The cubic root of 121895048 is about 495.8253048500.

The spelling of 121895048 in words is "one hundred twenty-one million, eight hundred ninety-five thousand, forty-eight".

Divisors: 1 2 4 8 11 22 44 88 1385171 2770342 5540684 11081368 15236881 30473762 60947524 121895048