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238802410152289 = 127227124492
BaseRepresentation
bin110110010011000010000100…
…110101000010000101100001
31011022112021202112222101022001
4312103002010311002011201
5222300014313444333124
62203520151315044001
7101204622224544334
oct6623020465020541
91138467675871261
10238802410152289
116a0a9595a68425
122294960bba0601
13a332c806a0559
1442d8153b1861b
151c91bea99eb44
hexd93084d42161

238802410152289 has 27 divisors (see below), whose sum is σ = 242128268646291. Its totient is φ = 235522106023680.

The previous prime is 238802410152283. The next prime is 238802410152323. The reversal of 238802410152289 is 982251014208832.

The square root of 238802410152289 is 15453233.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 145935266854689 + 92867143297600 = 12080367^2 + 9636760^2 .

It is not a de Polignac number, because 238802410152289 - 29 = 238802410151777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238802410152283) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 531853919937 + ... + 531853920385.

Almost surely, 2238802410152289 is an apocalyptic number.

238802410152289 is the 15453233-rd square number.

238802410152289 is the 7726617-th centered octagonal number.

It is an amenable number.

238802410152289 is a deficient number, since it is larger than the sum of its proper divisors (3325858494002).

238802410152289 is an frugal number, since it uses more digits than its factorization.

238802410152289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694 (or 847 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 55.

The spelling of 238802410152289 in words is "two hundred thirty-eight trillion, eight hundred two billion, four hundred ten million, one hundred fifty-two thousand, two hundred eighty-nine".

Divisors: 1 127 271 449 16129 34417 57023 73441 121679 201601 4370959 7241921 9327007 15453233 25603327 32975009 54633871 1184529889 1962560591 3251622529 4187826143 6938501617 14805779041 531853920161 881189705359 1880333938207 238802410152289