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12229031 = 231373881
BaseRepresentation
bin101110101001…
…100110100111
3212000022002002
4232221212213
511112312111
61114035515
7205642103
oct56514647
925008062
1012229031
1169a2941
124118b9b
1326c2319
1418a4903
15111863b
hexba99a7

12229031 has 8 divisors (see below), whose sum is σ = 12857184. Its totient is φ = 11608960.

The previous prime is 12229013. The next prime is 12229043. The reversal of 12229031 is 13092221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12229031 - 218 = 11966887 is a prime.

It is a super-2 number, since 2×122290312 = 299098398397922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12228994 and 12229012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12229051) 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, 1211 + ... + 5091.

It is an arithmetic number, because the mean of its divisors is an integer number (1607148).

Almost surely, 212229031 is an apocalyptic number.

12229031 is a deficient number, since it is larger than the sum of its proper divisors (628153).

12229031 is a wasteful number, since it uses less digits than its factorization.

12229031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4041.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 12229031 is about 3497.0031455519. The cubic root of 12229031 is about 230.3902071837.

The spelling of 12229031 in words is "twelve million, two hundred twenty-nine thousand, thirty-one".

Divisors: 1 23 137 3151 3881 89263 531697 12229031