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18290911000103 = 714919339072337
BaseRepresentation
bin1000010100010101011110…
…10000001011011000100111
32101202121001000222122111222
410022022233100023120213
54344134241204000403
6102522421205250555
73565321553146220
oct412125720133047
971677030878458
1018290911000103
11591214a464395
122074a99103a5b
13a28a96839321
144733db76c247
1521abc665a338
hex10a2af40b627

18290911000103 has 16 divisors (see below), whose sum is σ = 21055082030400. Its totient is φ = 15564644798976.

The previous prime is 18290911000093. The next prime is 18290911000121. The reversal of 18290911000103 is 30100011909281.

It is a de Polignac number, because none of the positive numbers 2k-18290911000103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18290911000163) 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, 2520050 + ... + 6552287.

It is an arithmetic number, because the mean of its divisors is an integer number (1315942626900).

Almost surely, 218290911000103 is an apocalyptic number.

18290911000103 is a deficient number, since it is larger than the sum of its proper divisors (2764171030297).

18290911000103 is a wasteful number, since it uses less digits than its factorization.

18290911000103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9074426.

The product of its (nonzero) digits is 3888, while the sum is 35.

Adding to 18290911000103 its reverse (30100011909281), we get a palindrome (48390922909384).

The spelling of 18290911000103 in words is "eighteen trillion, two hundred ninety billion, nine hundred eleven million, one hundred three", and thus it is an aban number.

Divisors: 1 7 149 1043 1933 13531 288017 2016119 9072337 63506359 1351778213 9462447491 17536827421 122757791947 2612987285729 18290911000103