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121201360 = 2457216431
BaseRepresentation
bin1110011100101…
…10001011010000
322110001200000021
413032112023100
5222011420420
620005433224
73001123510
oct716261320
9273050007
10121201360
1162462415
123470b814
131c1579a7
141214d840
15a9917aa
hex73962d0

121201360 has 40 divisors (see below), whose sum is σ = 322050816. Its totient is φ = 41554560.

The previous prime is 121201343. The next prime is 121201363. The reversal of 121201360 is 63102121.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121201363) by changing a digit.

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, 107656 + ... + 108775.

Almost surely, 2121201360 is an apocalyptic number.

121201360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121201360 is an abundant number, since it is smaller than the sum of its proper divisors (200849456).

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

121201360 is a wasteful number, since it uses less digits than its factorization.

121201360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216451 (or 216445 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 121201360 is about 11009.1489226007. The cubic root of 121201360 is about 494.8829570568.

Adding to 121201360 its reverse (63102121), we get a palindrome (184303481).

The spelling of 121201360 in words is "one hundred twenty-one million, two hundred one thousand, three hundred sixty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 560 216431 432862 865724 1082155 1515017 1731448 2164310 3030034 3462896 4328620 6060068 7575085 8657240 12120136 15150170 17314480 24240272 30300340 60600680 121201360