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4125628 = 2213217359
BaseRepresentation
bin1111101111001110111100
321202121022001
433233032330
52024010003
6224232044
750032033
oct17571674
97677261
104125628
112368711
12146b624
13b15b00
1479571a
1556761d
hex3ef3bc

4125628 has 36 divisors (see below), whose sum is σ = 8300880. Its totient is φ = 1787136.

The previous prime is 4125623. The next prime is 4125629. The reversal of 4125628 is 8265214.

4125628 is a nontrivial binomial coefficient, being equal to C(2873, 2).

It is a junction number, because it is equal to n+sod(n) for n = 4125596 and 4125605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4125623) 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, 11313 + ... + 11671.

It is an arithmetic number, because the mean of its divisors is an integer number (230580).

Almost surely, 24125628 is an apocalyptic number.

4125628 is the 2872-nd triangular number.

4125628 is the 958-th centered nonagonal number.

It is an amenable number.

4125628 is an abundant number, since it is smaller than the sum of its proper divisors (4175252).

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

4125628 is a wasteful number, since it uses less digits than its factorization.

4125628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406 (or 391 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 4125628 is about 2031.1641981878. The cubic root of 4125628 is about 160.3848548002.

It can be divided in two parts, 4125 and 628, that added together give a triangular number (4753 = T97).

The spelling of 4125628 in words is "four million, one hundred twenty-five thousand, six hundred twenty-eight".

Divisors: 1 2 4 13 17 26 34 52 68 169 221 338 359 442 676 718 884 1436 2873 4667 5746 6103 9334 11492 12206 18668 24412 60671 79339 121342 158678 242684 317356 1031407 2062814 4125628