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163143357 = 31329144247
BaseRepresentation
bin10011011100101…
…01111010111101
3102100222112121120
421232111322331
5313231041412
624104421153
74020460416
oct1156257275
9370875546
10163143357
11840aa023
12467777b9
1327a51440
141794a80d
15e4c8b8c
hex9b95ebd

163143357 has 16 divisors (see below), whose sum is σ = 242336640. Its totient is φ = 96933312.

The previous prime is 163143353. The next prime is 163143377. The reversal of 163143357 is 753341361.

It is not a de Polignac number, because 163143357 - 22 = 163143353 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163143353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70993 + ... + 73254.

It is an arithmetic number, because the mean of its divisors is an integer number (15146040).

Almost surely, 2163143357 is an apocalyptic number.

It is an amenable number.

163143357 is a deficient number, since it is larger than the sum of its proper divisors (79193283).

163143357 is a wasteful number, since it uses less digits than its factorization.

163143357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144292.

The product of its digits is 22680, while the sum is 33.

The square root of 163143357 is about 12772.7583943328. The cubic root of 163143357 is about 546.4156524484.

The spelling of 163143357 in words is "one hundred sixty-three million, one hundred forty-three thousand, three hundred fifty-seven".

Divisors: 1 3 13 29 39 87 377 1131 144247 432741 1875211 4183163 5625633 12549489 54381119 163143357