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1000103103020 = 225731230438503
BaseRepresentation
bin11101000110110101100…
…10100100101000101100
310112121102220102121020102
432203122302210220230
5112341202343244040
62043235132210232
7132153326053640
oct16433262445054
93477386377212
101000103103020
113561611467aa
121419b0609978
1373403757848
1436596004c20
151b035830515
hexe8daca4a2c

1000103103020 has 48 divisors (see below), whose sum is σ = 2477674795008. Its totient is φ = 331831442880.

The previous prime is 1000103103019. The next prime is 1000103103079. The reversal of 1000103103020 is 203013010001.

It is a junction number, because it is equal to n+sod(n) for n = 1000103102992 and 1000103103010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115214912 + ... + 115223591.

It is an arithmetic number, because the mean of its divisors is an integer number (51618224896).

Almost surely, 21000103103020 is an apocalyptic number.

1000103103020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000103103020 is an abundant number, since it is smaller than the sum of its proper divisors (1477571691988).

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

1000103103020 is a wasteful number, since it uses less digits than its factorization.

1000103103020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230438550 (or 230438548 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 1000103103020 its reverse (203013010001), we get a palindrome (1203116113021).

The spelling of 1000103103020 in words is "one trillion, one hundred three million, one hundred three thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 31 35 62 70 124 140 155 217 310 434 620 868 1085 2170 4340 230438503 460877006 921754012 1152192515 1613069521 2304385030 3226139042 4608770060 6452278084 7143593593 8065347605 14287187186 16130695210 28574374372 32261390420 35717967965 50005155151 71435935930 100010310302 142871871860 200020620604 250025775755 500051551510 1000103103020