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12061740 = 2235533793
BaseRepresentation
bin101110000000…
…110000101100
3211200210121010
4232000300230
511041433430
61110305220
7204344265
oct56006054
924623533
1012061740
116899189
124058210
132664132
14185d96c
1510d3cb0
hexb80c2c

12061740 has 48 divisors (see below), whose sum is σ = 34419168. Its totient is φ = 3154944.

The previous prime is 12061727. The next prime is 12061747. The reversal of 12061740 is 4716021.

It is not an unprimeable number, because it can be changed into a prime (12061747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1284 + ... + 5076.

It is an arithmetic number, because the mean of its divisors is an integer number (717066).

Almost surely, 212061740 is an apocalyptic number.

12061740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12061740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17209584).

12061740 is an abundant number, since it is smaller than the sum of its proper divisors (22357428).

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

12061740 is a wasteful number, since it uses less digits than its factorization.

12061740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3858 (or 3856 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 12061740 is about 3473.0015836449. The cubic root of 12061740 is about 229.3348140416.

Adding to 12061740 its reverse (4716021), we get a palindrome (16777761).

The spelling of 12061740 in words is "twelve million, sixty-one thousand, seven hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 53 60 106 159 212 265 318 530 636 795 1060 1590 3180 3793 7586 11379 15172 18965 22758 37930 45516 56895 75860 113790 201029 227580 402058 603087 804116 1005145 1206174 2010290 2412348 3015435 4020580 6030870 12061740