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4239480 = 233573103
BaseRepresentation
bin10000001011000001111000
321222101110210
4100023001320
52041130410
6230511120
751015000
oct20130170
97871423
104239480
112436203
1215054a0
13b5588b
147c5000
1558b220
hex40b078

4239480 has 128 divisors (see below), whose sum is σ = 14976000. Its totient is φ = 959616.

The previous prime is 4239479. The next prime is 4239491. The reversal of 4239480 is 849324.

It is a happy number.

It is a Cunningham number, because it is equal to 20592-1.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41109 + ... + 41211.

It is an arithmetic number, because the mean of its divisors is an integer number (117000).

Almost surely, 24239480 is an apocalyptic number.

4239480 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 4239480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7488000).

4239480 is an abundant number, since it is smaller than the sum of its proper divisors (10736520).

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

4239480 is a wasteful number, since it uses less digits than its factorization.

4239480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 4239480 is about 2058.9997571637. Note that the first 3 decimals coincide. The cubic root of 4239480 is about 161.8468297705.

The spelling of 4239480 in words is "four million, two hundred thirty-nine thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 35 40 42 49 56 60 70 84 98 103 105 120 140 147 168 196 206 210 245 280 294 309 343 392 412 420 490 515 588 618 686 721 735 824 840 980 1029 1030 1176 1236 1372 1442 1470 1545 1715 1960 2058 2060 2163 2472 2744 2884 2940 3090 3430 3605 4116 4120 4326 5047 5145 5768 5880 6180 6860 7210 8232 8652 10094 10290 10815 12360 13720 14420 15141 17304 20188 20580 21630 25235 28840 30282 35329 40376 41160 43260 50470 60564 70658 75705 86520 100940 105987 121128 141316 151410 176645 201880 211974 282632 302820 353290 423948 529935 605640 706580 847896 1059870 1413160 2119740 4239480