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121080682 = 260540341
BaseRepresentation
bin1110011011110…
…00101101101010
322102211112110201
413031320231222
5221444040212
620003102414
73000111622
oct715705552
9272745421
10121080682
116238a788
1234671a0a
131c114a98
141211b882
15a96ab57
hex7378b6a

121080682 has 4 divisors (see below), whose sum is σ = 181621026. Its totient is φ = 60540340.

The previous prime is 121080679. The next prime is 121080689. The reversal of 121080682 is 286080121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 286080121 = 319228391.

It can be written as a sum of positive squares in only one way, i.e., 100821681 + 20259001 = 10041^2 + 4501^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 121080682.

It is not an unprimeable number, because it can be changed into a prime (121080689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30270169 + ... + 30270172.

Almost surely, 2121080682 is an apocalyptic number.

121080682 is a deficient number, since it is larger than the sum of its proper divisors (60540344).

121080682 is an equidigital number, since it uses as much as digits as its factorization.

121080682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60540343.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 121080682 is about 11003.6667524966. Note that the first 3 decimals coincide. The cubic root of 121080682 is about 494.7186538464.

The spelling of 121080682 in words is "one hundred twenty-one million, eighty thousand, six hundred eighty-two".

Divisors: 1 2 60540341 121080682