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120206020 = 22511546391
BaseRepresentation
bin1110010101000…
…11001011000100
322101012002122211
413022203023010
5221233043040
615532233204
72656506604
oct712431304
9271162584
10120206020
1161942620
123430b804
131bb9992c
1411d70c04
15a8468ea
hex72a32c4

120206020 has 24 divisors (see below), whose sum is σ = 275381568. Its totient is φ = 43711200.

The previous prime is 120206011. The next prime is 120206029. The reversal of 120206020 is 20602021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (120206011) and next prime (120206029).

It is not an unprimeable number, because it can be changed into a prime (120206029) 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, 272976 + ... + 273415.

It is an arithmetic number, because the mean of its divisors is an integer number (11474232).

Almost surely, 2120206020 is an apocalyptic number.

120206020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120206020 is an abundant number, since it is smaller than the sum of its proper divisors (155175548).

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

120206020 is a wasteful number, since it uses less digits than its factorization.

120206020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546411 (or 546409 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 120206020 is about 10963.8506009522. The cubic root of 120206020 is about 493.5245251553.

Adding to 120206020 its reverse (20602021), we get a palindrome (140808041).

The spelling of 120206020 in words is "one hundred twenty million, two hundred six thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 546391 1092782 2185564 2731955 5463910 6010301 10927820 12020602 24041204 30051505 60103010 120206020