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211413090 = 23571277927
BaseRepresentation
bin11001001100111…
…10100001100010
3112201210220020110
430212132201202
5413110204330
632551152150
75144660460
oct1446364142
9481726213
10211413090
11a9378869
125a975656
1334a52105
1420113830
1513860db0
hexc99e862

211413090 has 64 divisors (see below), whose sum is σ = 584515584. Its totient is φ = 47936448.

The previous prime is 211413089. The next prime is 211413091. The reversal of 211413090 is 90314112.

211413090 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (211413089) and next prime (211413091).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (211413091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22707 + ... + 30633.

It is an arithmetic number, because the mean of its divisors is an integer number (9133056).

Almost surely, 2211413090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211413090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292257792).

211413090 is an abundant number, since it is smaller than the sum of its proper divisors (373102494).

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

211413090 is a wasteful number, since it uses less digits than its factorization.

211413090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8071.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 211413090 is about 14540.0512378740. The cubic root of 211413090 is about 595.7224376833.

The spelling of 211413090 in words is "two hundred eleven million, four hundred thirteen thousand, ninety".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 127 210 254 381 635 762 889 1270 1778 1905 2667 3810 4445 5334 7927 8890 13335 15854 23781 26670 39635 47562 55489 79270 110978 118905 166467 237810 277445 332934 554890 832335 1006729 1664670 2013458 3020187 5033645 6040374 7047103 10067290 14094206 15100935 21141309 30201870 35235515 42282618 70471030 105706545 211413090