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120013453 = 717144779
BaseRepresentation
bin1110010011101…
…00001010001101
322100211022111201
413021310022031
5221210412303
615524145501
72655045310
oct711641215
9270738451
10120013453
116182097a
1234238291
131bb300a1
1411d20977
15a80981d
hex727428d

120013453 has 4 divisors (see below), whose sum is σ = 137158240. Its totient is φ = 102868668.

The previous prime is 120013429. The next prime is 120013463. The reversal of 120013453 is 354310021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2k-120013453 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120013453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120013463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8572383 + ... + 8572396.

It is an arithmetic number, because the mean of its divisors is an integer number (34289560).

Almost surely, 2120013453 is an apocalyptic number.

It is an amenable number.

120013453 is a deficient number, since it is larger than the sum of its proper divisors (17144787).

120013453 is an equidigital number, since it uses as much as digits as its factorization.

120013453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17144786.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 120013453 is about 10955.0651755250. The cubic root of 120013453 is about 493.2608463724.

Adding to 120013453 its reverse (354310021), we get a palindrome (474323474).

The spelling of 120013453 in words is "one hundred twenty million, thirteen thousand, four hundred fifty-three".

Divisors: 1 7 17144779 120013453