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20153142204 = 22313129186809
BaseRepresentation
bin10010110001001110…
…001000101110111100
31221000111200200212020
4102301032020232330
5312233201022304
613131435440140
71312261611426
oct226116105674
957014620766
1020153142204
118601a18028
123aa52b6050
131b92336b20
14d9278b816
157ce41b5d9
hex4b1388bbc

20153142204 has 24 divisors (see below), whose sum is σ = 50641229520. Its totient is φ = 6200966784.

The previous prime is 20153142199. The next prime is 20153142221. The reversal of 20153142204 is 40224135102.

It is a super-2 number, since 2×201531422042 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64593249 + ... + 64593560.

It is an arithmetic number, because the mean of its divisors is an integer number (2110051230).

Almost surely, 220153142204 is an apocalyptic number.

It is an amenable number.

20153142204 is an abundant number, since it is smaller than the sum of its proper divisors (30488087316).

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

20153142204 is a wasteful number, since it uses less digits than its factorization.

20153142204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129186829 (or 129186827 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 20153142204 its reverse (40224135102), we get a palindrome (60377277306).

The spelling of 20153142204 in words is "twenty billion, one hundred fifty-three million, one hundred forty-two thousand, two hundred four".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 129186809 258373618 387560427 516747236 775120854 1550241708 1679428517 3358857034 5038285551 6717714068 10076571102 20153142204