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121324925 = 524852997
BaseRepresentation
bin1110011101101…
…00010101111101
322110021221111202
413032310111331
5222024344200
620012225245
73002146661
oct716642575
9273257452
10121324925
1162537237
123476b225
131c19bcc7
14121828a1
15a9b81d5
hex73b457d

121324925 has 6 divisors (see below), whose sum is σ = 150442938. Its totient is φ = 97059920.

The previous prime is 121324901. The next prime is 121324933. The reversal of 121324925 is 529423121.

It can be written as a sum of positive squares in 3 ways, for example, as 16999129 + 104325796 = 4123^2 + 10214^2 .

It is not a de Polignac number, because 121324925 - 220 = 120276349 is a prime.

It is a Duffinian number.

It is a congruent 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 5 ways as a sum of consecutive naturals, for example, 2426474 + ... + 2426523.

It is an arithmetic number, because the mean of its divisors is an integer number (25073823).

Almost surely, 2121324925 is an apocalyptic number.

It is an amenable number.

121324925 is a deficient number, since it is larger than the sum of its proper divisors (29118013).

121324925 is an equidigital number, since it uses as much as digits as its factorization.

121324925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4853007 (or 4853002 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 121324925 is about 11014.7594163468. The cubic root of 121324925 is about 495.0510779520.

The spelling of 121324925 in words is "one hundred twenty-one million, three hundred twenty-four thousand, nine hundred twenty-five".

Divisors: 1 5 25 4852997 24264985 121324925