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121413330 = 2345149893
BaseRepresentation
bin1110011110010…
…01111011010010
322110110102210000
413033021323102
5222040211310
620014150430
73002665503
oct717117322
9273412700
10121413330
11625976a5
12347b2416
131c20030c
14121a6baa
15a9d44c0
hex73c9ed2

121413330 has 40 divisors (see below), whose sum is σ = 326469132. Its totient is φ = 32376672.

The previous prime is 121413323. The next prime is 121413359. The reversal of 121413330 is 33314121.

It can be written as a sum of positive squares in 2 ways, for example, as 118396161 + 3017169 = 10881^2 + 1737^2 .

It is a super-3 number, since 3×1214133303 (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 74137 + ... + 75756.

Almost surely, 2121413330 is an apocalyptic number.

121413330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121413330 is an abundant number, since it is smaller than the sum of its proper divisors (205055802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121413330 is a wasteful number, since it uses less digits than its factorization.

121413330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149912 (or 149903 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 121413330 is about 11018.7717101318. The cubic root of 121413330 is about 495.1712905818.

Adding to 121413330 its reverse (33314121), we get a palindrome (154727451).

The spelling of 121413330 in words is "one hundred twenty-one million, four hundred thirteen thousand, three hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 270 405 810 149893 299786 449679 749465 899358 1349037 1498930 2248395 2698074 4047111 4496790 6745185 8094222 12141333 13490370 20235555 24282666 40471110 60706665 121413330