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434660920 = 235311672099
BaseRepresentation
bin11001111010000…
…110011000111000
31010021220001200121
4121322012120320
51342233122140
6111044143024
713525362001
oct3172063070
91107801617
10434660920
1120339a201
12101697a74
136c088c15
1441a281a8
152825d64a
hex19e86638

434660920 has 64 divisors (see below), whose sum is σ = 1016064000. Its totient is φ = 167168640.

The previous prime is 434660917. The next prime is 434660953. The reversal of 434660920 is 29066434.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206031 + ... + 208129.

It is an arithmetic number, because the mean of its divisors is an integer number (15876000).

Almost surely, 2434660920 is an apocalyptic number.

434660920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 434660920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (508032000).

434660920 is an abundant number, since it is smaller than the sum of its proper divisors (581403080).

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

434660920 is a wasteful number, since it uses less digits than its factorization.

434660920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2308 (or 2304 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 434660920 is about 20848.5232090909. The cubic root of 434660920 is about 757.5015601198.

The spelling of 434660920 in words is "four hundred thirty-four million, six hundred sixty thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 20 31 40 62 124 155 167 248 310 334 620 668 835 1240 1336 1670 2099 3340 4198 5177 6680 8396 10354 10495 16792 20708 20990 25885 41416 41980 51770 65069 83960 103540 130138 207080 260276 325345 350533 520552 650690 701066 1301380 1402132 1752665 2602760 2804264 3505330 7010660 10866523 14021320 21733046 43466092 54332615 86932184 108665230 217330460 434660920