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628066292 = 227171677901
BaseRepresentation
bin100101011011111…
…000011111110100
31121202211001222112
4211123320133310
52241241110132
6142153350152
721364322030
oct4533703764
91552731875
10628066292
112a2588557
12156408358
13a0174679
145d5b11c0
153a213ab2
hex256f87f4

628066292 has 48 divisors (see below), whose sum is σ = 1338156288. Its totient is φ = 251788800.

The previous prime is 628066291. The next prime is 628066297. The reversal of 628066292 is 292660826.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628066291) 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, 75542 + ... + 83442.

It is an arithmetic number, because the mean of its divisors is an integer number (27878256).

Almost surely, 2628066292 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 628066292, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (669078144).

628066292 is an abundant number, since it is smaller than the sum of its proper divisors (710089996).

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

628066292 is a wasteful number, since it uses less digits than its factorization.

628066292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8096 (or 8094 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 628066292 is about 25061.2508067734. The cubic root of 628066292 is about 856.3839024645.

The spelling of 628066292 in words is "six hundred twenty-eight million, sixty-six thousand, two hundred ninety-two".

Divisors: 1 2 4 7 14 17 28 34 68 119 167 238 334 476 668 1169 2338 2839 4676 5678 7901 11356 15802 19873 31604 39746 55307 79492 110614 134317 221228 268634 537268 940219 1319467 1880438 2638934 3760876 5277868 9236269 18472538 22430939 36945076 44861878 89723756 157016573 314033146 628066292