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29780684 = 2220273673
BaseRepresentation
bin111000110011…
…0101011001100
32002001000102022
41301212223030
530110440214
62542145312
7511063103
oct161465314
962030368
1029780684
11158a073a
129b82238
13622920b
143d5303a
152933d8e
hex1c66acc

29780684 has 12 divisors (see below), whose sum is σ = 52156104. Its totient is φ = 14878944.

The previous prime is 29780669. The next prime is 29780689. The reversal of 29780684 is 48608792.

It is not an unprimeable number, because it can be changed into a prime (29780689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6272 + ... + 9944.

It is an arithmetic number, because the mean of its divisors is an integer number (4346342).

Almost surely, 229780684 is an apocalyptic number.

It is an amenable number.

29780684 is a deficient number, since it is larger than the sum of its proper divisors (22375420).

29780684 is a wasteful number, since it uses less digits than its factorization.

29780684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5704 (or 5702 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 29780684 is about 5457.1681300836. The cubic root of 29780684 is about 309.9642136977.

The spelling of 29780684 in words is "twenty-nine million, seven hundred eighty thousand, six hundred eighty-four".

Divisors: 1 2 4 2027 3673 4054 7346 8108 14692 7445171 14890342 29780684