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203102302301 = 1731794878397
BaseRepresentation
bin1011110100100111010…
…1110011000001011101
3201102020112210222012122
42331021311303001131
511311423142133201
6233145351112325
720450031041063
oct2751165630135
9642215728178
10203102302301
1179153a558a8
12334426726a5
13161c9c72102
149b8a118033
15543a9c4e1b
hex2f49d7305d

203102302301 has 16 divisors (see below), whose sum is σ = 224796579840. Its totient is φ = 182647146240.

The previous prime is 203102302253. The next prime is 203102302303. The reversal of 203102302301 is 103203201302.

It is a cyclic number.

It is not a de Polignac number, because 203102302301 - 26 = 203102302237 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 203102302301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203102302303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2397566 + ... + 2480831.

It is an arithmetic number, because the mean of its divisors is an integer number (14049786240).

Almost surely, 2203102302301 is an apocalyptic number.

It is an amenable number.

203102302301 is a deficient number, since it is larger than the sum of its proper divisors (21694277539).

203102302301 is a wasteful number, since it uses less digits than its factorization.

203102302301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4878524.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 203102302301 its reverse (103203201302), we get a palindrome (306305503603).

The spelling of 203102302301 in words is "two hundred three billion, one hundred two million, three hundred two thousand, three hundred one".

Divisors: 1 17 31 79 527 1343 2449 41633 4878397 82932749 151230307 385393363 2570915219 6551687171 11947194253 203102302301