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153422893 = 1311801761
BaseRepresentation
bin10010010010100…
…00110000101101
3101200200200122101
421021100300231
5303234013033
623120215101
73542034031
oct1111206055
9350620571
10153422893
117966a988
124346a491
1325a29ba0
141653a1c1
15d70897d
hex9250c2d

153422893 has 4 divisors (see below), whose sum is σ = 165224668. Its totient is φ = 141621120.

The previous prime is 153422881. The next prime is 153422911. The reversal of 153422893 is 398224351.

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 41951529 + 111471364 = 6477^2 + 10558^2 .

It is a cyclic number.

It is not a de Polignac number, because 153422893 - 217 = 153291821 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 (153422873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5900868 + ... + 5900893.

It is an arithmetic number, because the mean of its divisors is an integer number (41306167).

Almost surely, 2153422893 is an apocalyptic number.

153422893 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

153422893 is a deficient number, since it is larger than the sum of its proper divisors (11801775).

153422893 is a wasteful number, since it uses less digits than its factorization.

153422893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11801774.

The product of its digits is 51840, while the sum is 37.

The square root of 153422893 is about 12386.3995172124. The cubic root of 153422893 is about 535.3404453794.

The spelling of 153422893 in words is "one hundred fifty-three million, four hundred twenty-two thousand, eight hundred ninety-three".

Divisors: 1 13 11801761 153422893