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121430419 = 1140127529
BaseRepresentation
bin1110011110011…
…10000110010011
322110111022012221
413033032012103
5222041233134
620014401511
73003066355
oct717160623
9273438187
10121430419
11625a9520
1234800297
131c208026
14121ad0d5
15a9d95b4
hex73ce193

121430419 has 8 divisors (see below), whose sum is σ = 132804720. Its totient is φ = 110112000.

The previous prime is 121430383. The next prime is 121430423. The reversal of 121430419 is 914034121.

It is a happy number.

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 121430419 - 27 = 121430291 is a prime.

It is a super-2 number, since 2×1214304192 = 29490693317031122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121430393 and 121430402.

It is not an unprimeable number, because it can be changed into a prime (121430459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9354 + ... + 18175.

It is an arithmetic number, because the mean of its divisors is an integer number (16600590).

Almost surely, 2121430419 is an apocalyptic number.

121430419 is a deficient number, since it is larger than the sum of its proper divisors (11374301).

121430419 is a wasteful number, since it uses less digits than its factorization.

121430419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27941.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 121430419 is about 11019.5471322555. The cubic root of 121430419 is about 495.1945213786.

The spelling of 121430419 in words is "one hundred twenty-one million, four hundred thirty thousand, four hundred nineteen".

Divisors: 1 11 401 4411 27529 302819 11039129 121430419