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121340480 = 265379189
BaseRepresentation
bin1110011101110…
…00001001000000
322110022201211212
413032320021000
5222030343410
620012425252
73002243222
oct716701100
9273281755
10121340480
1162547998
1234778228
131c1a6101
1412188412
15a9bcb05
hex73b8240

121340480 has 28 divisors (see below), whose sum is σ = 288942780. Its totient is φ = 48536064.

The previous prime is 121340477. The next prime is 121340533. The reversal of 121340480 is 84043121.

It can be written as a sum of positive squares in 2 ways, for example, as 52649536 + 68690944 = 7256^2 + 8288^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189275 + ... + 189914.

It is an arithmetic number, because the mean of its divisors is an integer number (10319385).

Almost surely, 2121340480 is an apocalyptic number.

121340480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121340480 is an abundant number, since it is smaller than the sum of its proper divisors (167602300).

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

121340480 is an equidigital number, since it uses as much as digits as its factorization.

121340480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379206 (or 379196 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 121340480 is about 11015.4654917529. The cubic root of 121340480 is about 495.0722337874.

The spelling of 121340480 in words is "one hundred twenty-one million, three hundred forty thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 379189 758378 1516756 1895945 3033512 3791890 6067024 7583780 12134048 15167560 24268096 30335120 60670240 121340480