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11210209990 = 2571271260991
BaseRepresentation
bin10100111000010111…
…00011101011000110
31001221020222200010121
422130023203223012
5140424303204430
65052213412154
7544541132650
oct123413435306
931836880117
1011210209990
114832964761
12220a33a05a
131098647c65
14784b8d6d0
15459263a7a
hex29c2e3ac6

11210209990 has 32 divisors (see below), whose sum is σ = 23242604544. Its totient is φ = 3813233760.

The previous prime is 11210209973. The next prime is 11210209991. The reversal of 11210209990 is 9990201211.

11210209990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11210209991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 621606 + ... + 639385.

It is an arithmetic number, because the mean of its divisors is an integer number (726331392).

Almost surely, 211210209990 is an apocalyptic number.

11210209990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11210209990 is an abundant number, since it is smaller than the sum of its proper divisors (12032394554).

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

11210209990 is a wasteful number, since it uses less digits than its factorization.

11210209990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261132.

The product of its (nonzero) digits is 2916, while the sum is 34.

The spelling of 11210209990 in words is "eleven billion, two hundred ten million, two hundred nine thousand, nine hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 127 254 635 889 1270 1778 4445 8890 1260991 2521982 6304955 8826937 12609910 17653874 44134685 88269370 160145857 320291714 800729285 1121020999 1601458570 2242041998 5605104995 11210209990