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29289132 = 22324911657
BaseRepresentation
bin110111110111…
…0101010101100
32001010001010200
41233232222230
524444223012
62523433500
7503645025
oct157565254
961101120
1029289132
11155953a4
129985890
1360b6562
143c65c4c
1528883dc
hex1beeaac

29289132 has 36 divisors (see below), whose sum is σ = 74231976. Its totient is φ = 9737280.

The previous prime is 29289103. The next prime is 29289137. The reversal of 29289132 is 23198292.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (29289137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16848 + ... + 18504.

Almost surely, 229289132 is an apocalyptic number.

29289132 is the 4419-th pentagonal number.

It is an amenable number.

29289132 is an abundant number, since it is smaller than the sum of its proper divisors (44942844).

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

29289132 is a wasteful number, since it uses less digits than its factorization.

29289132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2158 (or 2153 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 29289132 is about 5411.9434586847. The cubic root of 29289132 is about 308.2493483133.

The spelling of 29289132 in words is "twenty-nine million, two hundred eighty-nine thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 36 491 982 1473 1657 1964 2946 3314 4419 4971 5892 6628 8838 9942 14913 17676 19884 29826 59652 813587 1627174 2440761 3254348 4881522 7322283 9763044 14644566 29289132