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455152109 = 2112157119
BaseRepresentation
bin11011001000010…
…001000111101101
31011201110010022112
4123020101013231
51413004331414
6113055253405
714164505036
oct3310210755
91151403275
10455152109
11213a15575
1210851a265
13733b1a99
144463da8d
1529e59d3e
hex1b2111ed

455152109 has 4 divisors (see below), whose sum is σ = 457309440. Its totient is φ = 452994780.

The previous prime is 455152099. The next prime is 455152121. The reversal of 455152109 is 901251554.

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 cyclic number.

It is not a de Polignac number, because 455152109 - 228 = 186716653 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 (455152309) 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, 1078349 + ... + 1078770.

It is an arithmetic number, because the mean of its divisors is an integer number (114327360).

Almost surely, 2455152109 is an apocalyptic number.

It is an amenable number.

455152109 is a deficient number, since it is larger than the sum of its proper divisors (2157331).

455152109 is a wasteful number, since it uses less digits than its factorization.

455152109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2157330.

The product of its (nonzero) digits is 9000, while the sum is 32.

The square root of 455152109 is about 21334.2941997152. The cubic root of 455152109 is about 769.2228674760. Note that the first 3 decimals are identical.

The spelling of 455152109 in words is "four hundred fifty-five million, one hundred fifty-two thousand, one hundred nine".

Divisors: 1 211 2157119 455152109