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8422830 = 23251323313
BaseRepresentation
bin100000001000…
…010110101110
3120211220221200
4200020112232
54124012310
6500310330
7131410233
oct40102656
916756850
108422830
114833219
1229a23a6
13198ba30
14119378a
15b159c0
hex8085ae

8422830 has 96 divisors (see below), whose sum is σ = 24687936. Its totient is φ = 1976832.

The previous prime is 8422811. The next prime is 8422831. The reversal of 8422830 is 382248.

It is a junction number, because it is equal to n+sod(n) for n = 8422794 and 8422803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8422831) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26754 + ... + 27066.

It is an arithmetic number, because the mean of its divisors is an integer number (257166).

Almost surely, 28422830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8422830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12343968).

8422830 is an abundant number, since it is smaller than the sum of its proper divisors (16265106).

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

8422830 is a wasteful number, since it uses less digits than its factorization.

8422830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362 (or 359 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 8422830 is about 2902.2112259448. The cubic root of 8422830 is about 203.4632661129.

The spelling of 8422830 in words is "eight million, four hundred twenty-two thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 9 10 13 15 18 23 26 30 39 45 46 65 69 78 90 115 117 130 138 195 207 230 234 299 313 345 390 414 585 598 626 690 897 939 1035 1170 1495 1565 1794 1878 2070 2691 2817 2990 3130 4069 4485 4695 5382 5634 7199 8138 8970 9390 12207 13455 14085 14398 20345 21597 24414 26910 28170 35995 36621 40690 43194 61035 64791 71990 73242 93587 107985 122070 129582 183105 187174 215970 280761 323955 366210 467935 561522 647910 842283 935870 1403805 1684566 2807610 4211415 8422830