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203255123141 = 72310181124001
BaseRepresentation
bin1011110101001011110…
…0110000110011000101
3201102122012101001222202
42331102330300303011
511312231302420031
6233212450404245
720453565016640
oct2752274606305
9642565331882
10203255123141
1179222244414
1233485890685
131622281ac45
149ba2538a57
1554491102cb
hex2f52f30cc5

203255123141 has 16 divisors (see below), whose sum is σ = 242416965888. Its totient is φ = 166626240000.

The previous prime is 203255123131. The next prime is 203255123143. The reversal of 203255123141 is 141321552302.

It is a cyclic number.

It is not a de Polignac number, because 203255123141 - 226 = 203188014277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203255123143) 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, 1577141 + ... + 1701141.

It is an arithmetic number, because the mean of its divisors is an integer number (15151060368).

Almost surely, 2203255123141 is an apocalyptic number.

It is an amenable number.

203255123141 is a deficient number, since it is larger than the sum of its proper divisors (39161842747).

203255123141 is a wasteful number, since it uses less digits than its factorization.

203255123141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134212.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 203255123141 its reverse (141321552302), we get a palindrome (344576675443).

The spelling of 203255123141 in words is "two hundred three billion, two hundred fifty-five million, one hundred twenty-three thousand, one hundred forty-one".

Divisors: 1 7 23 161 10181 71267 124001 234163 868007 1639141 2852023 19964161 1262454181 8837179267 29036446163 203255123141