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34680440 = 235867011
BaseRepresentation
bin1000010001001…
…0111001111000
32102020221121202
42010102321320
532334233230
63235153332
7600531104
oct204227170
972227552
1034680440
1118637a23
12b745848
137253492
14486a904
1530a0a45
hex2112e78

34680440 has 16 divisors (see below), whose sum is σ = 78031080. Its totient is φ = 13872160.

The previous prime is 34680439. The next prime is 34680449. The reversal of 34680440 is 4408643.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34680449) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 433466 + ... + 433545.

Almost surely, 234680440 is an apocalyptic number.

It is an amenable number.

34680440 is an abundant number, since it is smaller than the sum of its proper divisors (43350640).

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

34680440 is a wasteful number, since it uses less digits than its factorization.

34680440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867022 (or 867018 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 34680440 is about 5889.0101035743. The cubic root of 34680440 is about 326.1080600783.

The spelling of 34680440 in words is "thirty-four million, six hundred eighty thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 867011 1734022 3468044 4335055 6936088 8670110 17340220 34680440