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20313010120220 = 2254878111257123
BaseRepresentation
bin1001001111001011111011…
…10000001010011000011100
32122220220102121020010012022
410213211331300022120130
510130302021042321340
6111111400143155312
74164365220112016
oct447457560123034
978826377203168
1020313010120220
116521776721204
122340969ba5b38
13b4467c61881c
145032252011b6
152535c47e53b5
hex12797dc0a61c

20313010120220 has 48 divisors (see below), whose sum is σ = 42750349544448. Its totient is φ = 8107488624960.

The previous prime is 20313010120211. The next prime is 20313010120229. The reversal of 20313010120220 is 2202101031302.

It is an interprime number because it is at equal distance from previous prime (20313010120211) and next prime (20313010120229).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20313010120229) 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, 78872579 + ... + 79129701.

It is an arithmetic number, because the mean of its divisors is an integer number (890632282176).

Almost surely, 220313010120220 is an apocalyptic number.

20313010120220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20313010120220 is an abundant number, since it is smaller than the sum of its proper divisors (22437339424228).

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

20313010120220 is a wasteful number, since it uses less digits than its factorization.

20313010120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265730 (or 265728 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20313010120220 its reverse (2202101031302), we get a palindrome (22515111151522).

The spelling of 20313010120220 in words is "twenty trillion, three hundred thirteen billion, ten million, one hundred twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 487 974 1948 2435 4870 8111 9740 16222 32444 40555 81110 162220 257123 514246 1028492 1285615 2571230 3950057 5142460 7900114 15800228 19750285 39500570 79001140 125218901 250437802 500875604 626094505 1252189010 2085524653 2504378020 4171049306 8342098612 10427623265 20855246530 41710493060 1015650506011 2031301012022 4062602024044 5078252530055 10156505060110 20313010120220