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120231453 = 340077151
BaseRepresentation
bin1110010101010…
…01011000011101
322101020101112210
413022221120131
5221234401303
615532551033
72656644006
oct712513035
9271211483
10120231453
116195a741
1234322479
131bba8394
1411d7a1ad
15a84e203
hex72a961d

120231453 has 4 divisors (see below), whose sum is σ = 160308608. Its totient is φ = 80154300.

The previous prime is 120231451. The next prime is 120231457. The reversal of 120231453 is 354132021.

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 not a de Polignac number, because 120231453 - 21 = 120231451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120231451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20038573 + ... + 20038578.

It is an arithmetic number, because the mean of its divisors is an integer number (40077152).

Almost surely, 2120231453 is an apocalyptic number.

It is an amenable number.

120231453 is a deficient number, since it is larger than the sum of its proper divisors (40077155).

120231453 is an equidigital number, since it uses as much as digits as its factorization.

120231453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40077154.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 120231453 is about 10965.0103967119. The cubic root of 120231453 is about 493.5593290808.

Adding to 120231453 its reverse (354132021), we get a palindrome (474363474).

The spelling of 120231453 in words is "one hundred twenty million, two hundred thirty-one thousand, four hundred fifty-three".

Divisors: 1 3 40077151 120231453