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20122030424 = 23231011082761
BaseRepresentation
bin10010101111010111…
…011101000101011000
31220221100011001112002
4102233113131011120
5312202214433144
613124404540132
71311433302506
oct225727350530
956840131462
1020122030424
1185963a8311
123a969b1648
131b88a62aa2
14d8c5ad676
157cb82314e
hex4af5dd158

20122030424 has 32 divisors (see below), whose sum is σ = 39759020640. Its totient is φ = 9528288000.

The previous prime is 20122030387. The next prime is 20122030477. The reversal of 20122030424 is 42403022102.

It is a super-2 number, since 2×201220304242 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20122030396 and 20122030405.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 522797 + ... + 559964.

It is an arithmetic number, because the mean of its divisors is an integer number (1242469395).

Almost surely, 220122030424 is an apocalyptic number.

It is an amenable number.

20122030424 is a deficient number, since it is larger than the sum of its proper divisors (19636990216).

20122030424 is a wasteful number, since it uses less digits than its factorization.

20122030424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082891 (or 1082887 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 20122030424 its reverse (42403022102), we get a palindrome (62525052526).

The spelling of 20122030424 in words is "twenty billion, one hundred twenty-two million, thirty thousand, four hundred twenty-four".

Divisors: 1 2 4 8 23 46 92 101 184 202 404 808 2323 4646 9292 18584 1082761 2165522 4331044 8662088 24903503 49807006 99614012 109358861 199228024 218717722 437435444 874870888 2515253803 5030507606 10061015212 20122030424