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153145255 = 530629051
BaseRepresentation
bin10010010000011…
…00111110100111
3101200011120210111
421020030332213
5303201122010
623110233451
73536466424
oct1110147647
9350146714
10153145255
11794a032a
1243355887
13259606c3
14164a6d4b
15d6a158a
hex920cfa7

153145255 has 4 divisors (see below), whose sum is σ = 183774312. Its totient is φ = 122516200.

The previous prime is 153145253. The next prime is 153145271. The reversal of 153145255 is 552541351.

153145255 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 is not a de Polignac number, because 153145255 - 21 = 153145253 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153145253) 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, 15314521 + ... + 15314530.

It is an arithmetic number, because the mean of its divisors is an integer number (45943578).

Almost surely, 2153145255 is an apocalyptic number.

153145255 is a deficient number, since it is larger than the sum of its proper divisors (30629057).

153145255 is an equidigital number, since it uses as much as digits as its factorization.

153145255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30629056.

The product of its digits is 15000, while the sum is 31.

The square root of 153145255 is about 12375.1870692931. The cubic root of 153145255 is about 535.0173284631.

The spelling of 153145255 in words is "one hundred fifty-three million, one hundred forty-five thousand, two hundred fifty-five".

Divisors: 1 5 30629051 153145255