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1020100030 = 25990110303
BaseRepresentation
bin111100110011010…
…111110110111110
32122002111110011121
4330303113312332
54042121200110
6245120141154
734164464365
oct7463276676
92562443147
101020100030
11483902284
122457677ba
13133456cb1
14996a07dc
155e851cda
hex3ccd7dbe

1020100030 has 16 divisors (see below), whose sum is σ = 1836543744. Its totient is φ = 407959200.

The previous prime is 1020100021. The next prime is 1020100033. The reversal of 1020100030 is 300010201.

It is a junction number, because it is equal to n+sod(n) for n = 1020099986 and 1020100022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020100033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93859 + ... + 104161.

It is an arithmetic number, because the mean of its divisors is an integer number (114783984).

Almost surely, 21020100030 is an apocalyptic number.

1020100030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020100030 is a deficient number, since it is larger than the sum of its proper divisors (816443714).

1020100030 is a wasteful number, since it uses less digits than its factorization.

1020100030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20211.

The product of its (nonzero) digits is 6, while the sum is 7.

The square root of 1020100030 is about 31939.0048373458. The cubic root of 1020100030 is about 1006.6556145203.

Adding to 1020100030 its reverse (300010201), we get a palindrome (1320110231).

The spelling of 1020100030 in words is "one billion, twenty million, one hundred thousand, thirty".

Divisors: 1 2 5 10 9901 10303 19802 20606 49505 51515 99010 103030 102010003 204020006 510050015 1020100030