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20103110232 = 23317331148859
BaseRepresentation
bin10010101110001111…
…010001111001011000
31220220000112210220020
4102232033101321120
5312132344011412
613122451230440
71311113421552
oct225617217130
956800483806
1020103110232
118586755297
123a905a8420
131b84b69cca
14d89c864d2
157c9d3718c
hex4ae3d1e58

20103110232 has 64 divisors (see below), whose sum is σ = 53375241600. Its totient is φ = 6287761920.

The previous prime is 20103110221. The next prime is 20103110263. The reversal of 20103110232 is 23201130102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60619 + ... + 209477.

It is an arithmetic number, because the mean of its divisors is an integer number (833988150).

Almost surely, 220103110232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20103110232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26687620800).

20103110232 is an abundant number, since it is smaller than the sum of its proper divisors (33272131368).

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

20103110232 is a wasteful number, since it uses less digits than its factorization.

20103110232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149216 (or 149212 counting only the distinct ones).

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

Adding to 20103110232 its reverse (23201130102), we get a palindrome (43304240334).

The spelling of 20103110232 in words is "twenty billion, one hundred three million, one hundred ten thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 102 136 204 331 408 662 993 1324 1986 2648 3972 5627 7944 11254 16881 22508 33762 45016 67524 135048 148859 297718 446577 595436 893154 1190872 1786308 2530603 3572616 5061206 7591809 10122412 15183618 20244824 30367236 49272329 60734472 98544658 147816987 197089316 295633974 394178632 591267948 837629593 1182535896 1675259186 2512888779 3350518372 5025777558 6701036744 10051555116 20103110232