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12020470 = 2571167233
BaseRepresentation
bin101101110110…
…101011110110
3211121200222121
4231312223312
511034123340
61105350154
7204113050
oct55665366
924550877
1012020470
116870180
12403835a
13264b407
14184c8d0
1510c694a
hexb76af6

12020470 has 64 divisors (see below), whose sum is σ = 27495936. Its totient is φ = 3674880.

The previous prime is 12020447. The next prime is 12020473. The reversal of 12020470 is 7402021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020473) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51474 + ... + 51706.

It is an arithmetic number, because the mean of its divisors is an integer number (429624).

Almost surely, 212020470 is an apocalyptic number.

12020470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12020470 is an abundant number, since it is smaller than the sum of its proper divisors (15475466).

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

12020470 is a wasteful number, since it uses less digits than its factorization.

12020470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 12020470 is about 3467.0549462043. The cubic root of 12020470 is about 229.0729540067.

Adding to 12020470 its reverse (7402021), we get a palindrome (19422491).

The spelling of 12020470 in words is "twelve million, twenty thousand, four hundred seventy".

Divisors: 1 2 5 7 10 11 14 22 35 55 67 70 77 110 134 154 233 335 385 466 469 670 737 770 938 1165 1474 1631 2330 2345 2563 3262 3685 4690 5126 5159 7370 8155 10318 12815 15611 16310 17941 25630 25795 31222 35882 51590 78055 89705 109277 156110 171721 179410 218554 343442 546385 858605 1092770 1202047 1717210 2404094 6010235 12020470