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120638017 = 537132059
BaseRepresentation
bin1110011000011…
…00101001000001
322102000001020201
413030030221001
5221340404032
615545405201
72663256223
oct714145101
9272001221
10120638017
1162108145
1234499801
131bcbb456
1412044413
15a8ce8e7
hex730ca41

120638017 has 8 divisors (see below), whose sum is σ = 124649280. Its totient is φ = 116691120.

The previous prime is 120638003. The next prime is 120638047. The reversal of 120638017 is 710836021.

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 120638017 - 27 = 120637889 is a prime.

It is a super-2 number, since 2×1206380172 = 29107062291384578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120638047) 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, 12267 + ... + 19792.

It is an arithmetic number, because the mean of its divisors is an integer number (15581160).

Almost surely, 2120638017 is an apocalyptic number.

It is an amenable number.

120638017 is a deficient number, since it is larger than the sum of its proper divisors (4011263).

120638017 is an equidigital number, since it uses as much as digits as its factorization.

120638017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32183.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 120638017 is about 10983.5339030751. The cubic root of 120638017 is about 494.1150286423.

The spelling of 120638017 in words is "one hundred twenty million, six hundred thirty-eight thousand, seventeen".

Divisors: 1 53 71 3763 32059 1699127 2276189 120638017