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34780340 = 2257248431
BaseRepresentation
bin1000010010101…
…1010010110100
32102110000122202
42010223102310
532400432330
63241244032
7601425260
oct204532264
972400582
1034780340
11186a5a91
12b793618
137289aaa
1448950a0
1530c0445
hex212b4b4

34780340 has 24 divisors (see below), whose sum is σ = 83473152. Its totient is φ = 11924640.

The previous prime is 34780331. The next prime is 34780363. The reversal of 34780340 is 4308743.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124076 + ... + 124355.

It is an arithmetic number, because the mean of its divisors is an integer number (3478048).

Almost surely, 234780340 is an apocalyptic number.

It is an amenable number.

34780340 is an abundant number, since it is smaller than the sum of its proper divisors (48692812).

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

34780340 is a wasteful number, since it uses less digits than its factorization.

34780340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248447 (or 248445 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 34780340 is about 5897.4859050277. The cubic root of 34780340 is about 326.4208873640.

The spelling of 34780340 in words is "thirty-four million, seven hundred eighty thousand, three hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 248431 496862 993724 1242155 1739017 2484310 3478034 4968620 6956068 8695085 17390170 34780340