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12001330 = 2511109103
BaseRepresentation
bin101101110010…
…000000110010
3211120201201201
4231302000302
511033020310
61105121414
7204003205
oct55620062
924521651
1012001330
116857860
12402926a
1326427a3
14184593c
1510c0e3a
hexb72032

12001330 has 16 divisors (see below), whose sum is σ = 23566464. Its totient is φ = 4364080.

The previous prime is 12001307. The next prime is 12001333. The reversal of 12001330 is 3310021.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (12001333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54442 + ... + 54661.

It is an arithmetic number, because the mean of its divisors is an integer number (1472904).

Almost surely, 212001330 is an apocalyptic number.

12001330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12001330 is a deficient number, since it is larger than the sum of its proper divisors (11565134).

12001330 is a wasteful number, since it uses less digits than its factorization.

12001330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109121.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 12001330 is about 3464.2935787834. The cubic root of 12001330 is about 228.9513063646.

Adding to 12001330 its reverse (3310021), we get a palindrome (15311351).

The spelling of 12001330 in words is "twelve million, one thousand, three hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 109103 218206 545515 1091030 1200133 2400266 6000665 12001330