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20122020010 = 252012202001
BaseRepresentation
bin10010101111010111…
…011010100010101010
31220221100010112020101
4102233113122202222
5312202214120020
613124404420014
71311433230241
oct225727324252
956840115211
1020122020010
1185963a0504
123a969a760a
131b88a5b121
14d8c5a9958
157cb82000a
hex4af5da8aa

20122020010 has 8 divisors (see below), whose sum is σ = 36219636036. Its totient is φ = 8048808000.

The previous prime is 20122019999. The next prime is 20122020013. The reversal of 20122020010 is 1002022102.

It can be written as a sum of positive squares in 2 ways, for example, as 18881782921 + 1240237089 = 137411^2 + 35217^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 2012202001 = 20122020010 / (2 + 0 + 1 + 2 + 2 + 0 + 2 + 0 + 0 + 1 + 0).

It is not an unprimeable number, because it can be changed into a prime (20122020013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1006100991 + ... + 1006101010.

Almost surely, 220122020010 is an apocalyptic number.

20122020010 is a deficient number, since it is larger than the sum of its proper divisors (16097616026).

20122020010 is a wasteful number, since it uses less digits than its factorization.

20122020010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2012202008.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20122020010 its reverse (1002022102), we get a palindrome (21124042112).

The spelling of 20122020010 in words is "twenty billion, one hundred twenty-two million, twenty thousand, ten".

Divisors: 1 2 5 10 2012202001 4024404002 10061010005 20122020010