Base | Representation |
---|---|
bin | 1001001001100100110… |
… | …0011101011100100000 |
3 | 120000201202211201002102 |
4 | 2102121030131130200 |
5 | 10033410341044130 |
6 | 200113413505532 |
7 | 14233201323536 |
oct | 2223114353440 |
9 | 500652751072 |
10 | 157189003040 |
11 | 60733104583 |
12 | 2656a3422a8 |
13 | 11a90a8c104 |
14 | 787246a156 |
15 | 414ecce645 |
hex | 249931d720 |
157189003040 has 96 divisors (see below), whose sum is σ = 388099071360. Its totient is φ = 60049690624.
The previous prime is 157189003009. The next prime is 157189003057. The reversal of 157189003040 is 40300981751.
It is a junction number, because it is equal to n+sod(n) for n = 157189002985 and 157189003003.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2392712 + ... + 2457528.
It is an arithmetic number, because the mean of its divisors is an integer number (4042698660).
Almost surely, 2157189003040 is an apocalyptic number.
157189003040 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 157189003040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194049535680).
157189003040 is an abundant number, since it is smaller than the sum of its proper divisors (230910068320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
157189003040 is a wasteful number, since it uses less digits than its factorization.
157189003040 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 65514 (or 65506 counting only the distinct ones).
The product of its (nonzero) digits is 30240, while the sum is 38.
Adding to 157189003040 its reverse (40300981751), we get a palindrome (197489984791).
The spelling of 157189003040 in words is "one hundred fifty-seven billion, one hundred eighty-nine million, three thousand, forty".
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