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1100312213 = 711131816073
BaseRepresentation
bin100000110010101…
…0110111010010101
32211200102122121012
41001211112322111
54223134442323
6301103302005
736160333220
oct10145267225
92750378535
101100312213
11515108940
122685aa905
13146c5cb20
14a61c05b7
15668e8678
hex41956e95

1100312213 has 32 divisors (see below), whose sum is σ = 1485748992. Its totient is φ = 786931200.

The previous prime is 1100312201. The next prime is 1100312293. The reversal of 1100312213 is 3122130011.

It is not a de Polignac number, because 1100312213 - 216 = 1100246677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100312293) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 178145 + ... + 184217.

It is an arithmetic number, because the mean of its divisors is an integer number (46429656).

Almost surely, 21100312213 is an apocalyptic number.

1100312213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1100312213 is a deficient number, since it is larger than the sum of its proper divisors (385436779).

1100312213 is a wasteful number, since it uses less digits than its factorization.

1100312213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6285.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1100312213 is about 33170.9543576907. The cubic root of 1100312213 is about 1032.3777702396.

Adding to 1100312213 its reverse (3122130011), we get a palindrome (4222442224).

It can be divided in two parts, 1100 and 312213, that added together give a palindrome (313313).

The spelling of 1100312213 in words is "one billion, one hundred million, three hundred twelve thousand, two hundred thirteen".

Divisors: 1 7 11 13 77 91 143 181 1001 1267 1991 2353 6073 13937 16471 25883 42511 66803 78949 181181 467621 552643 868439 1099213 6079073 7694491 12091343 14289769 84639401 100028383 157187459 1100312213