Search a number
-
+
29967180 = 22351997271
BaseRepresentation
bin111001001010…
…0001101001100
32002101111020120
41302110031030
530132422210
62550144540
7512500605
oct162241514
962344216
1029967180
1115a08871
12a052150
136293079
143da0dac
15296e270
hex1c9434c

29967180 has 96 divisors (see below), whose sum is σ = 89564160. Its totient is φ = 7464960.

The previous prime is 29967143. The next prime is 29967181. The reversal of 29967180 is 8176992.

It is not an unprimeable number, because it can be changed into a prime (29967181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110445 + ... + 110715.

It is an arithmetic number, because the mean of its divisors is an integer number (932960).

Almost surely, 229967180 is an apocalyptic number.

29967180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29967180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44782080).

29967180 is an abundant number, since it is smaller than the sum of its proper divisors (59596980).

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

29967180 is a wasteful number, since it uses less digits than its factorization.

29967180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399 (or 397 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 29967180 is about 5474.2287127960. The cubic root of 29967180 is about 310.6098988377.

The spelling of 29967180 in words is "twenty-nine million, nine hundred sixty-seven thousand, one hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 19 20 30 38 57 60 76 95 97 114 190 194 228 271 285 291 380 388 485 542 570 582 813 970 1084 1140 1164 1355 1455 1626 1843 1940 2710 2910 3252 3686 4065 5149 5420 5529 5820 7372 8130 9215 10298 11058 15447 16260 18430 20596 22116 25745 26287 27645 30894 36860 51490 52574 55290 61788 77235 78861 102980 105148 110580 131435 154470 157722 262870 308940 315444 394305 499453 525740 788610 998906 1498359 1577220 1997812 2497265 2996718 4994530 5993436 7491795 9989060 14983590 29967180