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211332129990 = 23514394895347
BaseRepresentation
bin1100010011010001100…
…0000110010011000110
3202012111002200112102120
43010310120012103012
511430302011124430
6241030140550410
721161002315602
oct3046430062306
9665432615376
10211332129990
1181697529193
1234b5a852406
1316c0bcb3c37
14a32b12a502
15576d26c610
hex31346064c6

211332129990 has 32 divisors (see below), whose sum is σ = 507549680640. Its totient is φ = 56316060384.

The previous prime is 211332129949. The next prime is 211332129991. The reversal of 211332129990 is 99921233112.

211332129990 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2113321299902 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211332129991) 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, 2404504 + ... + 2490843.

It is an arithmetic number, because the mean of its divisors is an integer number (15860927520).

Almost surely, 2211332129990 is an apocalyptic number.

211332129990 is an abundant number, since it is smaller than the sum of its proper divisors (296217550650).

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

211332129990 is a wasteful number, since it uses less digits than its factorization.

211332129990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4896796.

The product of its (nonzero) digits is 52488, while the sum is 42.

The spelling of 211332129990 in words is "two hundred eleven billion, three hundred thirty-two million, one hundred twenty-nine thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 1439 2878 4317 7195 8634 14390 21585 43170 4895347 9790694 14686041 24476735 29372082 48953470 73430205 146860410 7044404333 14088808666 21133212999 35222021665 42266425998 70444043330 105666064995 211332129990