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12340020 = 22357112671
BaseRepresentation
bin101111000100…
…101100110100
3212012221022210
4233010230310
511124340040
61120253420
7206613510
oct57045464
925187283
1012340020
116a69270
124171270
1327309b4
1418d3140
15113b480
hexbc4b34

12340020 has 96 divisors (see below), whose sum is σ = 43094016. Its totient is φ = 2563200.

The previous prime is 12340007. The next prime is 12340033. The reversal of 12340020 is 2004321.

Adding to 12340020 its reverse (2004321), we get a palindrome (14344341).

12340020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12340007) and next prime (12340033).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 12339978 and 12340005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3285 + ... + 5955.

It is an arithmetic number, because the mean of its divisors is an integer number (448896).

Almost surely, 212340020 is an apocalyptic number.

12340020 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 12340020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21547008).

12340020 is an abundant number, since it is smaller than the sum of its proper divisors (30753996).

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

12340020 is a wasteful number, since it uses less digits than its factorization.

12340020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2701 (or 2699 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 12340020 is about 3512.8364607536. The cubic root of 12340020 is about 231.0851057264.

The spelling of 12340020 in words is "twelve million, three hundred forty thousand, twenty".