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120202401 = 3113642497
BaseRepresentation
bin1110010101000…
…10010010100001
322101011220200210
413022202102201
5221232434101
615532204333
72656463214
oct712422241
9271156623
10120202401
116193a930
12343096a9
131bb980a7
1411d6d77b
15a8457d6
hex72a24a1

120202401 has 8 divisors (see below), whose sum is σ = 174839904. Its totient is φ = 72849920.

The previous prime is 120202387. The next prime is 120202441. The reversal of 120202401 is 104202021.

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

It is not a de Polignac number, because 120202401 - 26 = 120202337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120202441) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1821216 + ... + 1821281.

It is an arithmetic number, because the mean of its divisors is an integer number (21854988).

Almost surely, 2120202401 is an apocalyptic number.

120202401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120202401 is a deficient number, since it is larger than the sum of its proper divisors (54637503).

120202401 is a wasteful number, since it uses less digits than its factorization.

120202401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3642511.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 120202401 is about 10963.6855573297. The cubic root of 120202401 is about 493.5195723163.

Adding to 120202401 its reverse (104202021), we get a palindrome (224404422).

The spelling of 120202401 in words is "one hundred twenty million, two hundred two thousand, four hundred one".

Divisors: 1 3 11 33 3642497 10927491 40067467 120202401