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120443245 = 5131852973
BaseRepresentation
bin1110010110111…
…01000101101101
322101122011001221
413023131011231
5221313140440
615541303341
72661515326
oct713350555
9271564057
10120443245
1161a9487a
1234404b51
131bc508c0
1411dd344d
15a891d4a
hex72dd16d

120443245 has 8 divisors (see below), whose sum is σ = 155649816. Its totient is φ = 88942656.

The previous prime is 120443243. The next prime is 120443269. The reversal of 120443245 is 542344021.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 956484 + 119486761 = 978^2 + 10931^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120443245 - 21 = 120443243 is a prime.

It is a super-2 number, since 2×1204432452 = 29013150532260050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120443243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 926422 + ... + 926551.

It is an arithmetic number, because the mean of its divisors is an integer number (19456227).

Almost surely, 2120443245 is an apocalyptic number.

It is an amenable number.

120443245 is a deficient number, since it is larger than the sum of its proper divisors (35206571).

120443245 is a wasteful number, since it uses less digits than its factorization.

120443245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1852991.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 120443245 is about 10974.6637761710. The cubic root of 120443245 is about 493.8489665424.

Adding to 120443245 its reverse (542344021), we get a palindrome (662787266).

The spelling of 120443245 in words is "one hundred twenty million, four hundred forty-three thousand, two hundred forty-five".

Divisors: 1 5 13 65 1852973 9264865 24088649 120443245