Search a number
-
+
213438120 = 23357236299
BaseRepresentation
bin11001011100011…
…00111010101000
3112212121210001120
430232030322220
5414120004440
633102415240
75201123400
oct1456147250
9485553046
10213438120
11aa531245
125b591520
13352b0a5c
14204bd800
1513b10dd0
hexcb8cea8

213438120 has 96 divisors (see below), whose sum is σ = 744876000. Its totient is φ = 48784512.

The previous prime is 213438119. The next prime is 213438133. The reversal of 213438120 is 21834312.

213438120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12270 + ... + 24029.

It is an arithmetic number, because the mean of its divisors is an integer number (7759125).

Almost surely, 2213438120 is an apocalyptic number.

213438120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213438120 is an abundant number, since it is smaller than the sum of its proper divisors (531437880).

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

213438120 is a wasteful number, since it uses less digits than its factorization.

213438120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36327 (or 36316 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 213438120 is about 14609.5215527409. The cubic root of 213438120 is about 597.6184484161.

The spelling of 213438120 in words is "two hundred thirteen million, four hundred thirty-eight thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 35 40 42 49 56 60 70 84 98 105 120 140 147 168 196 210 245 280 294 392 420 490 588 735 840 980 1176 1470 1960 2940 5880 36299 72598 108897 145196 181495 217794 254093 290392 362990 435588 508186 544485 725980 762279 871176 1016372 1088970 1270465 1451960 1524558 1778651 2032744 2177940 2540930 3049116 3557302 3811395 4355880 5081860 5335953 6098232 7114604 7622790 8893255 10163720 10671906 14229208 15245580 17786510 21343812 26679765 30491160 35573020 42687624 53359530 71146040 106719060 213438120