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121840483 = 196412657
BaseRepresentation
bin1110100001100…
…10001101100011
322111021010201111
413100302031203
5222142343413
620031244151
73006425032
oct720621543
9274233644
10121840483
1162859616
1234979657
131c31c87b
1412278719
15aa6ad3d
hex7432363

121840483 has 4 divisors (see below), whose sum is σ = 128253160. Its totient is φ = 115427808.

The previous prime is 121840471. The next prime is 121840489. The reversal of 121840483 is 384048121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 384048121 = 1920213059.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-121840483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121840489) 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, 3206310 + ... + 3206347.

It is an arithmetic number, because the mean of its divisors is an integer number (32063290).

Almost surely, 2121840483 is an apocalyptic number.

121840483 is a deficient number, since it is larger than the sum of its proper divisors (6412677).

121840483 is an equidigital number, since it uses as much as digits as its factorization.

121840483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6412676.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 121840483 is about 11038.1376599497. The cubic root of 121840483 is about 495.7513101961.

The spelling of 121840483 in words is "one hundred twenty-one million, eight hundred forty thousand, four hundred eighty-three".

Divisors: 1 19 6412657 121840483