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229200137 = 1729464909
BaseRepresentation
bin11011010100101…
…01000100001001
3120222021120110222
431222111010021
5432133401022
634424315425
75452111655
oct1552250411
9528246428
10229200137
11108417501
1264912b75
133863c1aa
1422623a65
15151c6242
hexda95109

229200137 has 8 divisors (see below), whose sum is σ = 251051400. Its totient is φ = 208278784.

The previous prime is 229200133. The next prime is 229200149. The reversal of 229200137 is 731002922.

It can be written as a sum of positive squares in 4 ways, for example, as 21724921 + 207475216 = 4661^2 + 14404^2 .

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 229200137 - 22 = 229200133 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229200131) 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, 231962 + ... + 232947.

It is an arithmetic number, because the mean of its divisors is an integer number (31381425).

Almost surely, 2229200137 is an apocalyptic number.

It is an amenable number.

229200137 is a deficient number, since it is larger than the sum of its proper divisors (21851263).

229200137 is a wasteful number, since it uses less digits than its factorization.

229200137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464955.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 229200137 is about 15139.3572188518. The cubic root of 229200137 is about 611.9814960515.

The spelling of 229200137 in words is "two hundred twenty-nine million, two hundred thousand, one hundred thirty-seven".

Divisors: 1 17 29 493 464909 7903453 13482361 229200137