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4223157 = 31724871
BaseRepresentation
bin10000000111000010110101
321221120002020
4100013002311
52040120112
6230303353
750616261
oct20070265
97846066
104223157
112424a14
1214b7b59
13b4b313
147bd0a1
1558648c
hex4070b5

4223157 has 12 divisors (see below), whose sum is σ = 5982816. Its totient is φ = 2649280.

The previous prime is 4223117. The next prime is 4223171. The reversal of 4223157 is 7513224.

It is not a de Polignac number, because 4223157 - 27 = 4223029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4223117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1569 + ... + 3302.

It is an arithmetic number, because the mean of its divisors is an integer number (498568).

Almost surely, 24223157 is an apocalyptic number.

It is an amenable number.

4223157 is a deficient number, since it is larger than the sum of its proper divisors (1759659).

4223157 is a wasteful number, since it uses less digits than its factorization.

4223157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4908 (or 4891 counting only the distinct ones).

The product of its digits is 1680, while the sum is 24.

The square root of 4223157 is about 2055.0321165374. The cubic root of 4223157 is about 161.6388464310.

The spelling of 4223157 in words is "four million, two hundred twenty-three thousand, one hundred fifty-seven".

Divisors: 1 3 17 51 289 867 4871 14613 82807 248421 1407719 4223157