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29005501 = 722772137
BaseRepresentation
bin110111010100…
…1011010111101
32000120122001211
41232221122331
524411134001
62513404421
7501354100
oct156513275
960518054
1029005501
1115411298
129869711
136017425
143bd0737
15282e351
hex1ba96bd

29005501 has 12 divisors (see below), whose sum is σ = 33878748. Its totient is φ = 24760512.

The previous prime is 29005499. The next prime is 29005511. The reversal of 29005501 is 10550092.

It can be written as a sum of positive squares in 2 ways, for example, as 2893401 + 26112100 = 1701^2 + 5110^2 .

It is not a de Polignac number, because 29005501 - 21 = 29005499 is a prime.

It is a super-2 number, since 2×290055012 = 1682638176522002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29005511) 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, 12505 + ... + 14641.

It is an arithmetic number, because the mean of its divisors is an integer number (2823229).

Almost surely, 229005501 is an apocalyptic number.

It is an amenable number.

29005501 is a deficient number, since it is larger than the sum of its proper divisors (4873247).

29005501 is a wasteful number, since it uses less digits than its factorization.

29005501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2428 (or 2421 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 29005501 is about 5385.6755379432. The cubic root of 29005501 is about 307.2511075644.

Adding to 29005501 its reverse (10550092), we get a palindrome (39555593).

The spelling of 29005501 in words is "twenty-nine million, five thousand, five hundred one".

Divisors: 1 7 49 277 1939 2137 13573 14959 104713 591949 4143643 29005501