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12042620 = 225619871
BaseRepresentation
bin101101111100…
…000101111100
3211122211100222
4231330011330
511040330440
61110040512
7204234452
oct55740574
924584328
1012042620
116885887
124049138
132658515
1418569d2
1510cd2b5
hexb7c17c

12042620 has 24 divisors (see below), whose sum is σ = 25706688. Its totient is φ = 4737600.

The previous prime is 12042619. The next prime is 12042659. The reversal of 12042620 is 2624021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3716 + ... + 6155.

It is an arithmetic number, because the mean of its divisors is an integer number (1071112).

Almost surely, 212042620 is an apocalyptic number.

12042620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12042620 is an abundant number, since it is smaller than the sum of its proper divisors (13664068).

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

12042620 is a wasteful number, since it uses less digits than its factorization.

12042620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9941 (or 9939 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 12042620 is about 3470.2478297666. The cubic root of 12042620 is about 229.2135711522.

Adding to 12042620 its reverse (2624021), we get a palindrome (14666641).

The spelling of 12042620 in words is "twelve million, forty-two thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 61 122 244 305 610 1220 9871 19742 39484 49355 98710 197420 602131 1204262 2408524 3010655 6021310 12042620