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121010425 = 524840417
BaseRepresentation
bin1110011011001…
…11100011111001
322102200222002121
413031213203321
5221434313200
620001401241
72666400034
oct715474371
9272628077
10121010425
1162341a18
1234639221
131c0bbb03
141210001b
15a954e1a
hex73678f9

121010425 has 6 divisors (see below), whose sum is σ = 150052958. Its totient is φ = 96808320.

The previous prime is 121010413. The next prime is 121010459. The reversal of 121010425 is 524010121.

It can be written as a sum of positive squares in 3 ways, for example, as 6370576 + 114639849 = 2524^2 + 10707^2 .

It is not a de Polignac number, because 121010425 - 215 = 120977657 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121010399 and 121010408.

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, 2420184 + ... + 2420233.

Almost surely, 2121010425 is an apocalyptic number.

It is an amenable number.

121010425 is a deficient number, since it is larger than the sum of its proper divisors (29042533).

121010425 is an equidigital number, since it uses as much as digits as its factorization.

121010425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4840427 (or 4840422 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 121010425 is about 11000.4738534301. The cubic root of 121010425 is about 494.6229485896.

Adding to 121010425 its reverse (524010121), we get a palindrome (645020546).

The spelling of 121010425 in words is "one hundred twenty-one million, ten thousand, four hundred twenty-five".

Divisors: 1 5 25 4840417 24202085 121010425