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11983293 = 327229937
BaseRepresentation
bin101101101101…
…100110111101
3211112210222200
4231231212331
511031431133
61104502113
7203566500
oct55554675
924483880
1011983293
116845253
12401a939
13263750a
14183d137
1510ba913
hexb6d9bd

11983293 has 36 divisors (see below), whose sum is σ = 20851740. Its totient is φ = 6604416.

The previous prime is 11983289. The next prime is 11983331. The reversal of 11983293 is 39238911.

It can be written as a sum of positive squares in 2 ways, for example, as 2965284 + 9018009 = 1722^2 + 3003^2 .

It is not a de Polignac number, because 11983293 - 22 = 11983289 is a prime.

It is a super-2 number, since 2×119832932 = 287198622247698, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11983393) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 12321 + ... + 13257.

It is an arithmetic number, because the mean of its divisors is an integer number (579215).

Almost surely, 211983293 is an apocalyptic number.

It is an amenable number.

11983293 is a deficient number, since it is larger than the sum of its proper divisors (8868447).

11983293 is a wasteful number, since it uses less digits than its factorization.

11983293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986 (or 976 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 11983293 is about 3461.6893274816. The cubic root of 11983293 is about 228.8365506040.

The spelling of 11983293 in words is "eleven million, nine hundred eighty-three thousand, two hundred ninety-three".

Divisors: 1 3 7 9 21 29 49 63 87 147 203 261 441 609 937 1421 1827 2811 4263 6559 8433 12789 19677 27173 45913 59031 81519 137739 190211 244557 413217 570633 1331477 1711899 3994431 11983293