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203430010068 = 223231118169883
BaseRepresentation
bin1011110101110101011…
…1111001110011010100
3201110002101110020202100
42331131113321303110
511313111040310233
6233242055042100
720461120361235
oct2753527716324
9643071406670
10203430010068
1179301a3456a
1233514370330
131624cb2172c
149bbb86108c
155459658813
hex2f5d5f9cd4

203430010068 has 36 divisors (see below), whose sum is σ = 515879346528. Its totient is φ = 67591961040.

The previous prime is 203430010067. The next prime is 203430010093. The reversal of 203430010068 is 860010034302.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203430010067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9073746 + ... + 9096137.

It is an arithmetic number, because the mean of its divisors is an integer number (14329981848).

Almost surely, 2203430010068 is an apocalyptic number.

It is an amenable number.

203430010068 is an abundant number, since it is smaller than the sum of its proper divisors (312449336460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203430010068 is a wasteful number, since it uses less digits than its factorization.

203430010068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18170204 (or 18170199 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The spelling of 203430010068 in words is "two hundred three billion, four hundred thirty million, ten thousand, sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 311 622 933 1244 1866 2799 3732 5598 11196 18169883 36339766 54509649 72679532 109019298 163528947 218038596 327057894 654115788 5650833613 11301667226 16952500839 22603334452 33905001678 50857502517 67810003356 101715005034 203430010068