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20130321102 = 234018366717
BaseRepresentation
bin10010101111110111…
…000101001011001110
31220221220202021012020
4102233313011023032
5312211330233402
613125302351010
71311563622543
oct225767051316
956856667166
1020130321102
1185a0050211
123a9972b466
131b8a6a6608
14d8d72abca
157cc40e8bc
hex4afdc52ce

20130321102 has 16 divisors (see below), whose sum is σ = 40361047632. Its totient is φ = 6693372800.

The previous prime is 20130321053. The next prime is 20130321109. The reversal of 20130321102 is 20112303102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130321109) 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, 4180953 + ... + 4185764.

It is an arithmetic number, because the mean of its divisors is an integer number (2522565477).

Almost surely, 220130321102 is an apocalyptic number.

20130321102 is an abundant number, since it is smaller than the sum of its proper divisors (20230726530).

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

20130321102 is a wasteful number, since it uses less digits than its factorization.

20130321102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8367123.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20130321102 its reverse (20112303102), we get a palindrome (40242624204).

The spelling of 20130321102 in words is "twenty billion, one hundred thirty million, three hundred twenty-one thousand, one hundred two".

Divisors: 1 2 3 6 401 802 1203 2406 8366717 16733434 25100151 50200302 3355053517 6710107034 10065160551 20130321102