Search a number
-
+
29038287 = 3431631381
BaseRepresentation
bin110111011000…
…1011011001111
32000122022001010
41232301123033
524413211122
62514220303
7501551505
oct156613317
960568033
1029038287
1115433993
129884693
136029325
143bdc675
152838e0c
hex1bb16cf

29038287 has 16 divisors (see below), whose sum is σ = 39890048. Its totient is φ = 18779040.

The previous prime is 29038283. The next prime is 29038301. The reversal of 29038287 is 78283092.

It is not a de Polignac number, because 29038287 - 22 = 29038283 is a prime.

It is a super-2 number, since 2×290382872 = 1686444223788738, 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 (29038283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20337 + ... + 21717.

It is an arithmetic number, because the mean of its divisors is an integer number (2493128).

Almost surely, 229038287 is an apocalyptic number.

29038287 is a deficient number, since it is larger than the sum of its proper divisors (10851761).

29038287 is a wasteful number, since it uses less digits than its factorization.

29038287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1590.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 29038287 is about 5388.7184932969. The cubic root of 29038287 is about 307.3668297705.

The spelling of 29038287 in words is "twenty-nine million, thirty-eight thousand, two hundred eighty-seven".

Divisors: 1 3 43 129 163 489 1381 4143 7009 21027 59383 178149 225103 675309 9679429 29038287