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134490949 = 197078471
BaseRepresentation
bin10000000010000…
…10101101000101
3100101001211220021
420001002231011
5233412202244
621202335141
73222103615
oct1001025505
9311054807
10134490949
1169a0a04a
123905a4b1
1321b2b958
1413c0ca45
15bc19284
hex8042b45

134490949 has 4 divisors (see below), whose sum is σ = 141569440. Its totient is φ = 127412460.

The previous prime is 134490929. The next prime is 134490953. The reversal of 134490949 is 949094431.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 949094431 = 6421147811.

It is a cyclic number.

It is not a de Polignac number, because 134490949 - 223 = 126102341 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 (134490929) 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, 3539217 + ... + 3539254.

It is an arithmetic number, because the mean of its divisors is an integer number (35392360).

Almost surely, 2134490949 is an apocalyptic number.

134490949 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

134490949 is a deficient number, since it is larger than the sum of its proper divisors (7078491).

134490949 is an equidigital number, since it uses as much as digits as its factorization.

134490949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7078490.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 134490949 is about 11597.0232818599. The cubic root of 134490949 is about 512.3471829921.

The spelling of 134490949 in words is "one hundred thirty-four million, four hundred ninety thousand, nine hundred forty-nine".

Divisors: 1 19 7078471 134490949