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102121353 = 3211346817
BaseRepresentation
bin1100001011000…
…11111110001001
321010011022011100
412011203332021
5202120340403
614044452013
72350005615
oct605437611
9233138140
10102121353
1152710314
122a24a009
1318207249
14d7c4345
158e732a3
hex6163f89

102121353 has 6 divisors (see below), whose sum is σ = 147508634. Its totient is φ = 68080896.

The previous prime is 102121343. The next prime is 102121361. The reversal of 102121353 is 353121201.

It can be written as a sum of positive squares in only one way, i.e., 89927289 + 12194064 = 9483^2 + 3492^2 .

It is not a de Polignac number, because 102121353 - 29 = 102120841 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (102121303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5673400 + ... + 5673417.

Almost surely, 2102121353 is an apocalyptic number.

It is an amenable number.

102121353 is a deficient number, since it is larger than the sum of its proper divisors (45387281).

102121353 is a wasteful number, since it uses less digits than its factorization.

102121353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11346823 (or 11346820 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 102121353 is about 10105.5110212201. The cubic root of 102121353 is about 467.4180938801.

Adding to 102121353 its reverse (353121201), we get a palindrome (455242554).

The spelling of 102121353 in words is "one hundred two million, one hundred twenty-one thousand, three hundred fifty-three".

Divisors: 1 3 9 11346817 34040451 102121353