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29885193 = 3413101281
BaseRepresentation
bin111001000000…
…0001100001001
32002020022210000
41302000030021
530122311233
62544313213
7512006562
oct162001411
962208700
1029885193
1115962208
12a012809
136264960
143d7d169
152954d13
hex1c80309

29885193 has 40 divisors (see below), whose sum is σ = 48726216. Its totient is φ = 18144000.

The previous prime is 29885189. The next prime is 29885213. The reversal of 29885193 is 39158892.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8982009 + 20903184 = 2997^2 + 4572^2 .

It is not a de Polignac number, because 29885193 - 22 = 29885189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29885113) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 106213 + ... + 106493.

Almost surely, 229885193 is an apocalyptic number.

It is an amenable number.

29885193 is a deficient number, since it is larger than the sum of its proper divisors (18841023).

29885193 is a wasteful number, since it uses less digits than its factorization.

29885193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407 (or 398 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 29885193 is about 5466.7351316851. The cubic root of 29885193 is about 310.3263749603.

It can be divided in two parts, 298 and 85193, that added together give a triangular number (85491 = T413).

The spelling of 29885193 in words is "twenty-nine million, eight hundred eighty-five thousand, one hundred ninety-three".

Divisors: 1 3 9 13 27 39 81 101 117 281 303 351 843 909 1053 1313 2529 2727 3653 3939 7587 8181 10959 11817 22761 28381 32877 35451 85143 98631 106353 255429 295893 368953 766287 1106859 2298861 3320577 9961731 29885193