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34506240 = 29354493
BaseRepresentation
bin1000001110100…
…0011000000000
32101221002122220
42003220120000
532313144430
63231331040
7566204166
oct203503000
971832586
1034506240
111852905a
12b680a80
1371c20c2
144823236
153069110
hex20e8600

34506240 has 80 divisors (see below), whose sum is σ = 110336688. Its totient is φ = 9199616.

The previous prime is 34506221. The next prime is 34506247. The reversal of 34506240 is 4260543.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 34506240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34506247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5434 + ... + 9926.

Almost surely, 234506240 is an apocalyptic number.

34506240 is a gapful number since it is divisible by the number (30) 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 34506240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55168344).

34506240 is an abundant number, since it is smaller than the sum of its proper divisors (75830448).

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

34506240 is an equidigital number, since it uses as much as digits as its factorization.

34506240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4519 (or 4503 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 34506240 is about 5874.2012222940. The cubic root of 34506240 is about 325.5611292432.

Adding to 34506240 its reverse (4260543), we get a palindrome (38766783).

The spelling of 34506240 in words is "thirty-four million, five hundred six thousand, two hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 256 320 384 480 512 640 768 960 1280 1536 1920 2560 3840 4493 7680 8986 13479 17972 22465 26958 35944 44930 53916 67395 71888 89860 107832 134790 143776 179720 215664 269580 287552 359440 431328 539160 575104 718880 862656 1078320 1150208 1437760 1725312 2156640 2300416 2875520 3450624 4313280 5751040 6901248 8626560 11502080 17253120 34506240