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152454109 = 1181129089
BaseRepresentation
bin10010001011001…
…00001111011101
3101121212110201111
421011210033131
5303012012414
623043342021
73530560423
oct1105441735
9347773644
10152454109
1179069035
1243081911
132577ac42
1416367113
15d5b68c4
hex91643dd

152454109 has 4 divisors (see below), whose sum is σ = 152584380. Its totient is φ = 152323840.

The previous prime is 152454101. The next prime is 152454139. The reversal of 152454109 is 901454251.

152454109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 91145209 + 61308900 = 9547^2 + 7830^2 .

It is a cyclic number.

It is not a de Polignac number, because 152454109 - 23 = 152454101 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 (152454101) 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, 63364 + ... + 65725.

It is an arithmetic number, because the mean of its divisors is an integer number (38146095).

Almost surely, 2152454109 is an apocalyptic number.

It is an amenable number.

152454109 is a deficient number, since it is larger than the sum of its proper divisors (130271).

152454109 is a wasteful number, since it uses less digits than its factorization.

152454109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130270.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 152454109 is about 12347.2308231441. The cubic root of 152454109 is about 534.2112685527.

The spelling of 152454109 in words is "one hundred fifty-two million, four hundred fifty-four thousand, one hundred nine".

Divisors: 1 1181 129089 152454109