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12200072 = 234771457
BaseRepresentation
bin101110100010…
…100010001000
3211221211100112
4232202202020
511110400242
61113253452
7205461503
oct56424210
924854315
1012200072
116983105
124104288
1326b20a1
14189813a
15110ec82
hexba2888

12200072 has 32 divisors (see below), whose sum is σ = 23742720. Its totient is φ = 5873280.

The previous prime is 12200063. The next prime is 12200117. The reversal of 12200072 is 27000221.

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, 26468 + ... + 26924.

It is an arithmetic number, because the mean of its divisors is an integer number (741960).

Almost surely, 212200072 is an apocalyptic number.

It is an amenable number.

12200072 is a deficient number, since it is larger than the sum of its proper divisors (11542648).

12200072 is a wasteful number, since it uses less digits than its factorization.

12200072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581 (or 577 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 12200072 is about 3492.8601460694. The cubic root of 12200072 is about 230.2082046631.

Adding to 12200072 its reverse (27000221), we get a palindrome (39200293).

The spelling of 12200072 in words is "twelve million, two hundred thousand, seventy-two".

Divisors: 1 2 4 8 47 71 94 142 188 284 376 457 568 914 1828 3337 3656 6674 13348 21479 26696 32447 42958 64894 85916 129788 171832 259576 1525009 3050018 6100036 12200072