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20153012310 = 2325223922359
BaseRepresentation
bin10010110001001101…
…101001000001010110
31221000111110002200100
4102301031221001112
5312233132343220
613131432554530
71312260530634
oct226115510126
957014402610
1020153012310
118601939482
123aa5252a46
131b922bc972
14d92756354
157ce3e2d90
hex4b1369056

20153012310 has 24 divisors (see below), whose sum is σ = 52397832240. Its totient is φ = 5374136592.

The previous prime is 20153012309. The next prime is 20153012351. The reversal of 20153012310 is 1321035102.

20153012310 is a `hidden beast` number, since 2 + 0 + 1 + 530 + 123 + 10 = 666.

It is a super-2 number, since 2×201530123102 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111961090 + ... + 111961269.

It is an arithmetic number, because the mean of its divisors is an integer number (2183243010).

Almost surely, 220153012310 is an apocalyptic number.

20153012310 is an abundant number, since it is smaller than the sum of its proper divisors (32244819930).

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

20153012310 is a wasteful number, since it uses less digits than its factorization.

20153012310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223922372 (or 223922369 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

Adding to 20153012310 its reverse (1321035102), we get a palindrome (21474047412).

The spelling of 20153012310 in words is "twenty billion, one hundred fifty-three million, twelve thousand, three hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 223922359 447844718 671767077 1119611795 1343534154 2015301231 2239223590 3358835385 4030602462 6717670770 10076506155 20153012310