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3100131289 is a prime number
BaseRepresentation
bin1011100011001000…
…0011111111011001
322000001102222122101
42320302003333121
522322113200124
61231342323401
7136552452433
oct27062037731
98001388571
103100131289
111350a41582
12726289561
133a5372a18
14215a2d653
15132272644
hexb8c83fd9

3100131289 has 2 divisors, whose sum is σ = 3100131290. Its totient is φ = 3100131288.

The previous prime is 3100131259. The next prime is 3100131299. The reversal of 3100131289 is 9821310013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2106810000 + 993321289 = 45900^2 + 31517^2 .

It is an emirp because it is prime and its reverse (9821310013) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3100131289 - 229 = 2563260377 is a prime.

It is a super-2 number, since 2×31001312892 = 19221628018073603042, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3100131259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1550065644 + 1550065645.

It is an arithmetic number, because the mean of its divisors is an integer number (1550065645).

Almost surely, 23100131289 is an apocalyptic number.

It is an amenable number.

3100131289 is a deficient number, since it is larger than the sum of its proper divisors (1).

3100131289 is an equidigital number, since it uses as much as digits as its factorization.

3100131289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 3100131289 is about 55678.8226258422. The cubic root of 3100131289 is about 1458.1203196712.

The spelling of 3100131289 in words is "three billion, one hundred million, one hundred thirty-one thousand, two hundred eighty-nine".