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15120130000 = 24541798447
BaseRepresentation
bin11100001010011101…
…01101111111010000
31110000202012012001211
432011032231333100
5221431223130000
610540204505504
71043455661443
oct160516557720
943022165054
1015120130000
116459a12508
122b1b84b294
13156c6ba1b1
14a3617565a
155d76437ba
hex3853adfd0

15120130000 has 100 divisors (see below), whose sum is σ = 36816215040. Its totient is φ = 6013552000.

The previous prime is 15120129991. The next prime is 15120130043. The reversal of 15120130000 is 3102151.

It is a tau number, because it is divible by the number of its divisors (100).

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 19 ways as a sum of consecutive naturals, for example, 1785777 + ... + 1794223.

Almost surely, 215120130000 is an apocalyptic number.

15120130000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15120130000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18408107520).

15120130000 is an abundant number, since it is smaller than the sum of its proper divisors (21696085040).

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

15120130000 is an equidigital number, since it uses as much as digits as its factorization.

15120130000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8654 (or 8633 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 13.

Adding to 15120130000 its reverse (3102151), we get a palindrome (15123232151).

The spelling of 15120130000 in words is "fifteen billion, one hundred twenty million, one hundred thirty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 179 200 250 358 400 500 625 716 895 1000 1250 1432 1790 2000 2500 2864 3580 4475 5000 7160 8447 8950 10000 14320 16894 17900 22375 33788 35800 42235 44750 67576 71600 84470 89500 111875 135152 168940 179000 211175 223750 337880 358000 422350 447500 675760 844700 895000 1055875 1512013 1689400 1790000 2111750 3024026 3378800 4223500 5279375 6048052 7560065 8447000 10558750 12096104 15120130 16894000 21117500 24192208 30240260 37800325 42235000 60480520 75600650 84470000 120961040 151201300 189001625 302402600 378003250 604805200 756006500 945008125 1512013000 1890016250 3024026000 3780032500 7560065000 15120130000