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1302040131 = 3762001911
BaseRepresentation
bin100110110011011…
…1000111001000011
310100202000111021120
41031212320321003
510131310241011
6333111123323
744160105240
oct11546707103
93322014246
101302040131
11608a71027
12304073543
131799a0762
14c4cd25c7
1579494a06
hex4d9b8e43

1302040131 has 8 divisors (see below), whose sum is σ = 1984061184. Its totient is φ = 744022920.

The previous prime is 1302040121. The next prime is 1302040171. The reversal of 1302040131 is 1310402031.

1302040131 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1302040131 - 25 = 1302040099 is a prime.

It is a super-2 number, since 2×13020401312 = 3390617005468994322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1302040131.

It is not an unprimeable number, because it can be changed into a prime (1302040121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31000935 + ... + 31000976.

It is an arithmetic number, because the mean of its divisors is an integer number (248007648).

Almost surely, 21302040131 is an apocalyptic number.

1302040131 is a deficient number, since it is larger than the sum of its proper divisors (682021053).

1302040131 is an equidigital number, since it uses as much as digits as its factorization.

1302040131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62001921.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1302040131 is about 36083.7931902953. The cubic root of 1302040131 is about 1091.9635037582.

Adding to 1302040131 its reverse (1310402031), we get a palindrome (2612442162).

The spelling of 1302040131 in words is "one billion, three hundred two million, forty thousand, one hundred thirty-one".

Divisors: 1 3 7 21 62001911 186005733 434013377 1302040131