Base | Representation |
---|---|
bin | 100110110010111… |
… | …0010100100010001 |
3 | 10100201110212011001 |
4 | 1031211302210101 |
5 | 10131222031311 |
6 | 333101022001 |
7 | 44154465400 |
oct | 11545624421 |
9 | 3321425131 |
10 | 1301752081 |
11 | 608894673 |
12 | 303b54901 |
13 | 1798cc606 |
14 | c4c59637 |
15 | 794394c1 |
hex | 4d972911 |
1301752081 has 12 divisors (see below), whose sum is σ = 1514999808. Its totient is φ = 1115259432.
The previous prime is 1301752069. The next prime is 1301752117. The reversal of 1301752081 is 1802571031.
It is not a de Polignac number, because 1301752081 - 215 = 1301719313 is a prime.
It is a super-2 number, since 2×13017520812 = 3389116960775661122, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (1301752021) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 126720 + ... + 136606.
It is an arithmetic number, because the mean of its divisors is an integer number (126249984).
Almost surely, 21301752081 is an apocalyptic number.
It is an amenable number.
1301752081 is a deficient number, since it is larger than the sum of its proper divisors (213247727).
1301752081 is an equidigital number, since it uses as much as digits as its factorization.
1301752081 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12588 (or 12581 counting only the distinct ones).
The product of its (nonzero) digits is 1680, while the sum is 28.
The square root of 1301752081 is about 36079.8015654188. The cubic root of 1301752081 is about 1091.8829728852.
The spelling of 1301752081 in words is "one billion, three hundred one million, seven hundred fifty-two thousand, eighty-one".
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