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213152500 = 22541123337
BaseRepresentation
bin11001011010001…
…11001011110100
3112212002021021001
430231013023310
5414031340000
633052333044
75165523601
oct1455071364
9485067231
10213152500
11aa3566a0
125b474184
1335210a52
14204476a8
1513aa646a
hexcb472f4

213152500 has 120 divisors (see below), whose sum is σ = 532179648. Its totient is φ = 73920000.

The previous prime is 213152479. The next prime is 213152501. The reversal of 213152500 is 5251312.

213152500 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

213152500 is strictly pandigital in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213152501) 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, 632332 + ... + 632668.

Almost surely, 2213152500 is an apocalyptic number.

213152500 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 213152500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266089824).

213152500 is an abundant number, since it is smaller than the sum of its proper divisors (319027148).

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

213152500 is a wasteful number, since it uses less digits than its factorization.

213152500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395 (or 378 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 213152500 is about 14599.7431484256. The cubic root of 213152500 is about 597.3517544487.

The spelling of 213152500 in words is "two hundred thirteen million, one hundred fifty-two thousand, five hundred".

Divisors: 1 2 4 5 10 11 20 22 23 25 44 46 50 55 92 100 110 115 125 220 230 250 253 275 337 460 500 506 550 575 625 674 1012 1100 1150 1250 1265 1348 1375 1685 2300 2500 2530 2750 2875 3370 3707 5060 5500 5750 6325 6740 6875 7414 7751 8425 11500 12650 13750 14375 14828 15502 16850 18535 25300 27500 28750 31004 31625 33700 37070 38755 42125 57500 63250 74140 77510 84250 85261 92675 126500 155020 158125 168500 170522 185350 193775 210625 316250 341044 370700 387550 421250 426305 463375 632500 775100 842500 852610 926750 968875 1705220 1853500 1937750 2131525 2316875 3875500 4263050 4633750 4844375 8526100 9267500 9688750 10657625 19377500 21315250 42630500 53288125 106576250 213152500