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4123252 = 2272109193
BaseRepresentation
bin1111101110101001110100
321202111001001
433232221310
52023421002
6224213044
750022100
oct17565164
97674031
104123252
112366951
12146a184
13b149c3
14794900
15566a87
hex3eea74

4123252 has 36 divisors (see below), whose sum is σ = 8514660. Its totient is φ = 1741824.

The previous prime is 4123211. The next prime is 4123253. The reversal of 4123252 is 2523214.

It can be written as a sum of positive squares in 2 ways, for example, as 1920996 + 2202256 = 1386^2 + 1484^2 .

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4123253) 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, 21268 + ... + 21460.

Almost surely, 24123252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4123252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4257330).

4123252 is an abundant number, since it is smaller than the sum of its proper divisors (4391408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4123252 is a wasteful number, since it uses less digits than its factorization.

4123252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320 (or 311 counting only the distinct ones).

The product of its digits is 480, while the sum is 19.

The square root of 4123252 is about 2030.5792277082. The cubic root of 4123252 is about 160.3540596830.

Adding to 4123252 its reverse (2523214), we get a palindrome (6646466).

It can be divided in two parts, 4 and 123252, that added together give a triangular number (123256 = T496).

The spelling of 4123252 in words is "four million, one hundred twenty-three thousand, two hundred fifty-two".

Divisors: 1 2 4 7 14 28 49 98 109 193 196 218 386 436 763 772 1351 1526 2702 3052 5341 5404 9457 10682 18914 21037 21364 37828 42074 84148 147259 294518 589036 1030813 2061626 4123252