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121443466 = 21393891123
BaseRepresentation
bin1110011110100…
…01010010001010
322110111222010011
413033101102022
5222042142331
620014542134
73003152404
oct717212212
9273458104
10121443466
1162608301
123480794a
131c210c51
14121b3b74
15a9dd3b1
hex73d148a

121443466 has 16 divisors (see below), whose sum is σ = 184111200. Its totient is φ = 60076368.

The previous prime is 121443451. The next prime is 121443479. The reversal of 121443466 is 664344121.

It is a super-3 number, since 3×1214434663 (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 107581 + ... + 108703.

It is an arithmetic number, because the mean of its divisors is an integer number (11506950).

Almost surely, 2121443466 is an apocalyptic number.

121443466 is a deficient number, since it is larger than the sum of its proper divisors (62667734).

121443466 is a wasteful number, since it uses less digits than its factorization.

121443466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1653.

The product of its digits is 13824, while the sum is 31.

The square root of 121443466 is about 11020.1391098298. The cubic root of 121443466 is about 495.2122560110.

Adding to 121443466 its reverse (664344121), we get a palindrome (785787587).

The spelling of 121443466 in words is "one hundred twenty-one million, four hundred forty-three thousand, four hundred sixty-six".

Divisors: 1 2 139 278 389 778 1123 2246 54071 108142 156097 312194 436847 873694 60721733 121443466