Base | Representation |
---|---|
bin | 111101000110001001… |
… | …1110110100000010101 |
3 | 110112122202122122210122 |
4 | 1322030103312200111 |
5 | 4122200434024414 |
6 | 140135052201325 |
7 | 12323222244341 |
oct | 1721423664025 |
9 | 415582578718 |
10 | 131203033109 |
11 | 50708767775 |
12 | 21517769245 |
13 | c4ac1bb745 |
14 | 64c9188621 |
15 | 362d79cb8e |
hex | 1e8c4f6815 |
131203033109 has 32 divisors (see below), whose sum is σ = 144940803840. Its totient is φ = 118210176000.
The previous prime is 131203033099. The next prime is 131203033141. The reversal of 131203033109 is 901330302131.
It is a cyclic number.
It is not a de Polignac number, because 131203033109 - 232 = 126908065813 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131203030109) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47865479 + ... + 47868219.
It is an arithmetic number, because the mean of its divisors is an integer number (4529400120).
Almost surely, 2131203033109 is an apocalyptic number.
It is an amenable number.
131203033109 is a deficient number, since it is larger than the sum of its proper divisors (13737770731).
131203033109 is a wasteful number, since it uses less digits than its factorization.
131203033109 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3581.
The product of its (nonzero) digits is 1458, while the sum is 26.
The spelling of 131203033109 in words is "one hundred thirty-one billion, two hundred three million, thirty-three thousand, one hundred nine".
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