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20103313230 = 232571113372163
BaseRepresentation
bin10010101110010000…
…000011011101001110
31220220000221010100200
4102232100003131032
5312132422010410
613122455434330
71311115225440
oct225620033516
956800833320
1020103313230
118586883860
123a906859a6
131b84c0b520
14d89cda490
157c9d773c0
hex4ae40374e

20103313230 has 576 divisors, whose sum is σ = 72569323008. Its totient is φ = 3728747520.

The previous prime is 20103313211. The next prime is 20103313253. The reversal of 20103313230 is 3231330102.

20103313230 is a `hidden beast` number, since 2 + 0 + 10 + 331 + 323 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 123333129 + ... + 123333291.

It is an arithmetic number, because the mean of its divisors is an integer number (125988408).

Almost surely, 220103313230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20103313230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36284661504).

20103313230 is an abundant number, since it is smaller than the sum of its proper divisors (52466009778).

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

20103313230 is a wasteful number, since it uses less digits than its factorization.

20103313230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281 (or 241 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 20103313230 its reverse (3231330102), we get a palindrome (23334643332).

It can be divided in two parts, 2010331 and 3230, that added together give a square (2013561 = 14192).

The spelling of 20103313230 in words is "twenty billion, one hundred three million, three hundred thirteen thousand, two hundred thirty".