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2120412 = 223725243
BaseRepresentation
bin1000000101101011011100
310222201122210
420011223130
51020323122
6113240420
724010650
oct10055334
93881583
102120412
111219108
12863110
135931a8
143d2a60
152bd40c
hex205adc

2120412 has 24 divisors (see below), whose sum is σ = 5654656. Its totient is φ = 605808.

The previous prime is 2120411. The next prime is 2120423. The reversal of 2120412 is 2140212.

It is a super-2 number, since 2×21204122 = 8992294099488, which contains 22 as substring.

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

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120411) 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, 12538 + ... + 12705.

22120412 is an apocalyptic number.

It is an amenable number.

2120412 is an abundant number, since it is smaller than the sum of its proper divisors (3534244).

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

2120412 is a wasteful number, since it uses less digits than its factorization.

2120412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25257 (or 25255 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2120412 is about 1456.1634523638. The cubic root of 2120412 is about 128.4714870599.

Adding to 2120412 its reverse (2140212), we get a palindrome (4260624).

The spelling of 2120412 in words is "two million, one hundred twenty thousand, four hundred twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 25243 50486 75729 100972 151458 176701 302916 353402 530103 706804 1060206 2120412