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121620682 = 263439587
BaseRepresentation
bin1110011111111…
…00100011001010
322110211222012201
413033330203022
5222113330212
620022430414
73004521151
oct717744312
9273758181
10121620682
1162719467
123489240a
131c273801
141221c598
15aa25b57
hex73fc8ca

121620682 has 8 divisors (see below), whose sum is σ = 182478816. Its totient is φ = 60794412.

The previous prime is 121620673. The next prime is 121620683. The reversal of 121620682 is 286026121.

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

It is a self number, because there is not a number n which added to its sum of digits gives 121620682.

It is not an unprimeable number, because it can be changed into a prime (121620683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7893 + ... + 17479.

It is an arithmetic number, because the mean of its divisors is an integer number (22809852).

Almost surely, 2121620682 is an apocalyptic number.

121620682 is a deficient number, since it is larger than the sum of its proper divisors (60858134).

121620682 is an equidigital number, since it uses as much as digits as its factorization.

121620682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15932.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 121620682 is about 11028.1767305389. The cubic root of 121620682 is about 495.4530179200.

The spelling of 121620682 in words is "one hundred twenty-one million, six hundred twenty thousand, six hundred eighty-two".

Divisors: 1 2 6343 9587 12686 19174 60810341 121620682