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203230310030 = 25114179570407
BaseRepresentation
bin1011110101000101111…
…0000110111010001110
3201102120110200102210122
42331101132012322032
511312203424410110
6233210202504542
720453144063336
oct2752136067216
9642513612718
10203230310030
117920a236a10
1233479505152
131621a640b27
149b9d11a0c6
155446d5d255
hex2f51786e8e

203230310030 has 64 divisors (see below), whose sum is σ = 413979310080. Its totient is φ = 71186668800.

The previous prime is 203230310021. The next prime is 203230310039. The reversal of 203230310030 is 30013032302.

203230310030 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (203230310021) and next prime (203230310039).

It is a junction number, because it is equal to n+sod(n) for n = 203230309990 and 203230310008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203230310039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71087 + ... + 641493.

It is an arithmetic number, because the mean of its divisors is an integer number (6468426720).

Almost surely, 2203230310030 is an apocalyptic number.

203230310030 is an abundant number, since it is smaller than the sum of its proper divisors (210749000050).

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

203230310030 is a wasteful number, since it uses less digits than its factorization.

203230310030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570545.

The product of its (nonzero) digits is 324, while the sum is 17.

Adding to 203230310030 its reverse (30013032302), we get a palindrome (233243342332).

The spelling of 203230310030 in words is "two hundred three billion, two hundred thirty million, three hundred ten thousand, thirty".

Divisors: 1 2 5 10 11 22 41 55 79 82 110 158 205 395 410 451 790 869 902 1738 2255 3239 4345 4510 6478 8690 16195 32390 35629 71258 178145 356290 570407 1140814 2852035 5704070 6274477 12548954 23386687 31372385 45062153 46773374 62744770 90124306 116933435 225310765 233866870 257253557 450621530 495683683 514507114 991367366 1286267785 1847548273 2478418415 2572535570 3695096546 4956836830 9237741365 18475482730 20323031003 40646062006 101615155015 203230310030