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121079419 = 196779413
BaseRepresentation
bin1110011011110…
…00011001111011
322102211110201221
413031320121323
5221444020134
620003052511
73000105136
oct715703173
9272743657
10121079419
116238983a
1234671137
131c114336
141211b21d
15a96a5b4
hex737867b

121079419 has 8 divisors (see below), whose sum is σ = 127653840. Its totient is φ = 114525216.

The previous prime is 121079417. The next prime is 121079447. The reversal of 121079419 is 914970121.

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

It is a cyclic number.

It is not a de Polignac number, because 121079419 - 21 = 121079417 is a prime.

It is a super-2 number, since 2×1210794192 = 29320451410755122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121079417) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8157 + ... + 17569.

It is an arithmetic number, because the mean of its divisors is an integer number (15956730).

Almost surely, 2121079419 is an apocalyptic number.

121079419 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

121079419 is a deficient number, since it is larger than the sum of its proper divisors (6574421).

121079419 is an equidigital number, since it uses as much as digits as its factorization.

121079419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10109.

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 121079419 is about 11003.6093623865. The cubic root of 121079419 is about 494.7169336935.

The spelling of 121079419 in words is "one hundred twenty-one million, seventy-nine thousand, four hundred nineteen".

Divisors: 1 19 677 9413 12863 178847 6372601 121079419