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20313003030 = 2352292956769
BaseRepresentation
bin10010111010101111…
…111101010000010110
31221102122111110200120
4102322233331100112
5313100112044110
613155350052410
71316242451115
oct227257752026
957378443616
1020313003030
118684184911
123b2a94a106
131bb94a9128
14da9ac1c7c
157dd497870
hex4babfd416

20313003030 has 32 divisors (see below), whose sum is σ = 48964111200. Its totient is φ = 5393144832.

The previous prime is 20313003023. The next prime is 20313003031. The reversal of 20313003030 is 3030031302.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20313003031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1471515 + ... + 1485254.

It is an arithmetic number, because the mean of its divisors is an integer number (1530128475).

Almost surely, 220313003030 is an apocalyptic number.

20313003030 is an abundant number, since it is smaller than the sum of its proper divisors (28651108170).

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

20313003030 is a wasteful number, since it uses less digits than its factorization.

20313003030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2957008.

The product of its (nonzero) digits is 162, while the sum is 15.

Adding to 20313003030 its reverse (3030031302), we get a palindrome (23343034332).

The spelling of 20313003030 in words is "twenty billion, three hundred thirteen million, three thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 229 458 687 1145 1374 2290 3435 6870 2956769 5913538 8870307 14783845 17740614 29567690 44351535 88703070 677100101 1354200202 2031300303 3385500505 4062600606 6771001010 10156501515 20313003030