Base | Representation |
---|---|
bin | 11101110101100011001110… |
… | …001111101000100111101110 |
3 | 122012121211021110201111012101 |
4 | 131311203032033220213232 |
5 | 114144430310031014210 |
6 | 1143031052520325314 |
7 | 36432366505003615 |
oct | 3565431617504756 |
9 | 565554243644171 |
10 | 131223301032430 |
11 | 388a25424a2912 |
12 | 12873b5601383a |
13 | 582b3c53cba39 |
14 | 245935517687c |
15 | 1028644c08a3a |
hex | 7758ce3e89ee |
131223301032430 has 32 divisors (see below), whose sum is σ = 250102198705824. Its totient is φ = 49400523211776.
The previous prime is 131223301032371. The next prime is 131223301032431. The reversal of 131223301032430 is 34230103322131.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131223301032431) 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, 2204487 + ... + 16349506.
It is an arithmetic number, because the mean of its divisors is an integer number (7815693709557).
Almost surely, 2131223301032430 is an apocalyptic number.
131223301032430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
131223301032430 is a deficient number, since it is larger than the sum of its proper divisors (118878897673394).
131223301032430 is a wasteful number, since it uses less digits than its factorization.
131223301032430 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18595620.
The product of its (nonzero) digits is 7776, while the sum is 28.
Adding to 131223301032430 its reverse (34230103322131), we get a palindrome (165453404354561).
The spelling of 131223301032430 in words is "one hundred thirty-one trillion, two hundred twenty-three billion, three hundred one million, thirty-two thousand, four hundred thirty".
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