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34030040 = 2351127989
BaseRepresentation
bin1000000111010…
…0000111011000
32101000220102212
42001310013120
532202430130
63213214252
7562151642
oct201640730
971026385
1034030040
1118233300
12b491388
137086425
14473b892
152ec2e95
hex20741d8

34030040 has 96 divisors (see below), whose sum is σ = 86184000. Its totient is φ = 12080640.

The previous prime is 34029997. The next prime is 34030043. The reversal of 34030040 is 4003043.

34030040 = T408 + T409 + ... + T647.

It is a junction number, because it is equal to n+sod(n) for n = 34029997 and 34030024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34030043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 382316 + ... + 382404.

It is an arithmetic number, because the mean of its divisors is an integer number (897750).

Almost surely, 234030040 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 34030040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43092000).

34030040 is an abundant number, since it is smaller than the sum of its proper divisors (52153960).

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

34030040 is a wasteful number, since it uses less digits than its factorization.

34030040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 34030040 is about 5833.5272348726. The cubic root of 34030040 is about 324.0565617861.

Adding to 34030040 its reverse (4003043), we get a palindrome (38033083).

The spelling of 34030040 in words is "thirty-four million, thirty thousand, forty", and thus it is an eban number.

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 79 88 89 110 121 158 178 220 242 316 356 395 440 445 484 605 632 712 790 869 890 968 979 1210 1580 1738 1780 1958 2420 3160 3476 3560 3916 4345 4840 4895 6952 7031 7832 8690 9559 9790 10769 14062 17380 19118 19580 21538 28124 34760 35155 38236 39160 43076 47795 53845 56248 70310 76472 77341 86152 95590 107690 140620 154682 191180 215380 281240 309364 382360 386705 430760 618728 773410 850751 1546820 1701502 3093640 3403004 4253755 6806008 8507510 17015020 34030040