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150688393 = 211714163
BaseRepresentation
bin10001111101101…
…01001010001001
3101111112202121121
420332311022021
5302034012033
622541435241
73506554522
oct1076651211
9344482547
10150688393
1178072469
124256bb21
13252b033b
1416027849
15d36862d
hex8fb5289

150688393 has 4 divisors (see below), whose sum is σ = 151402768. Its totient is φ = 149974020.

The previous prime is 150688367. The next prime is 150688397. The reversal of 150688393 is 393886051.

150688393 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, 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: 393886051 = 1330298927.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-150688393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150688397) 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, 356871 + ... + 357292.

It is an arithmetic number, because the mean of its divisors is an integer number (37850692).

Almost surely, 2150688393 is an apocalyptic number.

It is an amenable number.

150688393 is a deficient number, since it is larger than the sum of its proper divisors (714375).

150688393 is an equidigital number, since it uses as much as digits as its factorization.

150688393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714374.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 150688393 is about 12275.5200704492. The cubic root of 150688393 is about 532.1408518168.

The spelling of 150688393 in words is "one hundred fifty million, six hundred eighty-eight thousand, three hundred ninety-three".

Divisors: 1 211 714163 150688393