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121225274 = 2411478357
BaseRepresentation
bin1110011100111…
…00000000111010
322110002212210222
413032130000322
5222013202044
620010140042
73001253312
oct716340072
9273085728
10121225274
1162479385
1234721622
131c165841
1412158442
15a9988ee
hex739c03a

121225274 has 8 divisors (see below), whose sum is σ = 186273108. Its totient is φ = 59134240.

The previous prime is 121225271. The next prime is 121225277. The reversal of 121225274 is 472522121.

It is an interprime number because it is at equal distance from previous prime (121225271) and next prime (121225277).

It can be written as a sum of positive squares in 2 ways, for example, as 110103049 + 11122225 = 10493^2 + 3335^2 .

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

It is not an unprimeable number, because it can be changed into a prime (121225271) 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, 739097 + ... + 739260.

Almost surely, 2121225274 is an apocalyptic number.

121225274 is a deficient number, since it is larger than the sum of its proper divisors (65047834).

121225274 is a wasteful number, since it uses less digits than its factorization.

121225274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1478400.

The product of its digits is 2240, while the sum is 26.

The square root of 121225274 is about 11010.2349657035. The cubic root of 121225274 is about 494.9155030413.

Adding to 121225274 its reverse (472522121), we get a palindrome (593747395).

The spelling of 121225274 in words is "one hundred twenty-one million, two hundred twenty-five thousand, two hundred seventy-four".

Divisors: 1 2 41 82 1478357 2956714 60612637 121225274