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1302091141 = 13601166657
BaseRepresentation
bin100110110011100…
…0101010110000101
310100202010002020211
41031213011112011
510131313404031
6333112155421
744160410041
oct11547052605
93322102224
101302091141
11608aa638a
12304098b71
131799baa40
14c4d07021
15794a4bb1
hex4d9c5585

1302091141 has 8 divisors (see below), whose sum is σ = 1404593624. Its totient is φ = 1199923200.

The previous prime is 1302091129. The next prime is 1302091159. The reversal of 1302091141 is 1411902031.

It can be written as a sum of positive squares in 4 ways, for example, as 176757025 + 1125334116 = 13295^2 + 33546^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 7-Lehmer number, since φ(1302091141) divides (1302091141-1)7.

It is a cyclic number.

It is not a de Polignac number, because 1302091141 - 213 = 1302082949 is a prime.

It is the 36085-th Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1302097141) by changing a digit.

It is a nontrivial repunit in base 36084.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75516 + ... + 91141.

It is an arithmetic number, because the mean of its divisors is an integer number (175574203).

Almost surely, 21302091141 is an apocalyptic number.

It is an amenable number.

1302091141 is a deficient number, since it is larger than the sum of its proper divisors (102502483).

1302091141 is a wasteful number, since it uses less digits than its factorization.

1302091141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167271.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 1302091141 is about 36084.5000103923. The cubic root of 1302091141 is about 1091.9777635160.

Adding to 1302091141 its reverse (1411902031), we get a palindrome (2713993172).

The spelling of 1302091141 in words is "one billion, three hundred two million, ninety-one thousand, one hundred forty-one".

Divisors: 1 13 601 7813 166657 2166541 100160857 1302091141