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1970011513 is a prime number
BaseRepresentation
bin111010101101011…
…1111110101111001
312002021220221202101
41311122333311321
513013310332023
6523252103401
766550551541
oct16532776571
95067827671
101970011513
11921024898
1246b904b61
132551a76b2
141498d0321
15b7e3c1ad
hex756bfd79

1970011513 has 2 divisors, whose sum is σ = 1970011514. Its totient is φ = 1970011512.

The previous prime is 1970011487. The next prime is 1970011541. The reversal of 1970011513 is 3151100791.

It is an a-pointer prime, because the next prime (1970011541) can be obtained adding 1970011513 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1802257209 + 167754304 = 42453^2 + 12952^2 .

It is an emirp because it is prime and its reverse (3151100791) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1970011513 - 25 = 1970011481 is a prime.

It is a super-2 number, since 2×19700115132 = 7761890722705098338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1970011543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 985005756 + 985005757.

It is an arithmetic number, because the mean of its divisors is an integer number (985005757).

Almost surely, 21970011513 is an apocalyptic number.

It is an amenable number.

1970011513 is a deficient number, since it is larger than the sum of its proper divisors (1).

1970011513 is an equidigital number, since it uses as much as digits as its factorization.

1970011513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 945, while the sum is 28.

The square root of 1970011513 is about 44384.8117378006. The cubic root of 1970011513 is about 1253.5921235374.

It can be divided in two parts, 19700 and 11513, that added together give a palindrome (31213).

The spelling of 1970011513 in words is "one billion, nine hundred seventy million, eleven thousand, five hundred thirteen".