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29349520 = 245366869
BaseRepresentation
bin110111111110…
…1011010010000
32001020002222021
41233331122100
530003141040
62525021224
7504316054
oct157753220
961202867
1029349520
1115626802
1299b4814
136107ba5
143c7dc64
15289b24a
hex1bfd690

29349520 has 20 divisors (see below), whose sum is σ = 68237820. Its totient is φ = 11739776.

The previous prime is 29349503. The next prime is 29349533. The reversal of 29349520 is 2594392.

It can be written as a sum of positive squares in 2 ways, for example, as 17405584 + 11943936 = 4172^2 + 3456^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×293495202 = 1722788648460800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183355 + ... + 183514.

It is an arithmetic number, because the mean of its divisors is an integer number (3411891).

Almost surely, 229349520 is an apocalyptic number.

29349520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29349520 is an abundant number, since it is smaller than the sum of its proper divisors (38888300).

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

29349520 is a wasteful number, since it uses less digits than its factorization.

29349520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366882 (or 366876 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 29349520 is about 5417.5197276983. The cubic root of 29349520 is about 308.4610512205.

The spelling of 29349520 in words is "twenty-nine million, three hundred forty-nine thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 366869 733738 1467476 1834345 2934952 3668690 5869904 7337380 14674760 29349520