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121413430 = 2529418667
BaseRepresentation
bin1110011110010…
…01111100110110
322110110102220201
413033021330312
5222040212210
620014151114
73002666005
oct717117466
9273412821
10121413430
1162597786
12347b249a
131c200388
14121a6c3c
15a9d453a
hex73c9f36

121413430 has 16 divisors (see below), whose sum is σ = 226080720. Its totient is φ = 46890592.

The previous prime is 121413427. The next prime is 121413431. The reversal of 121413430 is 34314121.

It is a junction number, because it is equal to n+sod(n) for n = 121413398 and 121413407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121413431) 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, 209044 + ... + 209623.

It is an arithmetic number, because the mean of its divisors is an integer number (14130045).

Almost surely, 2121413430 is an apocalyptic number.

121413430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121413430 is a deficient number, since it is larger than the sum of its proper divisors (104667290).

121413430 is a wasteful number, since it uses less digits than its factorization.

121413430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418703.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 121413430 is about 11018.7762478417. The cubic root of 121413430 is about 495.1714265282.

Adding to 121413430 its reverse (34314121), we get a palindrome (155727551).

The spelling of 121413430 in words is "one hundred twenty-one million, four hundred thirteen thousand, four hundred thirty".

Divisors: 1 2 5 10 29 58 145 290 418667 837334 2093335 4186670 12141343 24282686 60706715 121413430