Search a number
-
+
20122430133 = 313577894211
BaseRepresentation
bin10010101111011000…
…111110101010110101
31220221100220100211010
4102233120332222311
5312202320231013
613124421302433
71311436556031
oct225730765265
956840810733
1020122430133
118596650653
123a96b64a19
131b88b729c0
14d8c6751c1
157cb8a17c3
hex4af63eab5

20122430133 has 16 divisors (see below), whose sum is σ = 28943854016. Its totient is φ = 12361559040.

The previous prime is 20122430087. The next prime is 20122430179. The reversal of 20122430133 is 33103422102.

It is an interprime number because it is at equal distance from previous prime (20122430087) and next prime (20122430179).

It is not a de Polignac number, because 20122430133 - 217 = 20122299061 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122430333) 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, 424603 + ... + 469608.

It is an arithmetic number, because the mean of its divisors is an integer number (1808990876).

Almost surely, 220122430133 is an apocalyptic number.

It is an amenable number.

20122430133 is a deficient number, since it is larger than the sum of its proper divisors (8821423883).

20122430133 is a wasteful number, since it uses less digits than its factorization.

20122430133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894804.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20122430133 its reverse (33103422102), we get a palindrome (53225852235).

The spelling of 20122430133 in words is "twenty billion, one hundred twenty-two million, four hundred thirty thousand, one hundred thirty-three".

Divisors: 1 3 13 39 577 1731 7501 22503 894211 2682633 11624743 34874229 515959747 1547879241 6707476711 20122430133