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1300434053 = 2356540611
BaseRepresentation
bin100110110000011…
…0000110010000101
310100121222220011012
41031200300302011
510130402342203
6333012452005
744140335632
oct11540606205
93317886135
101300434053
11608074396
1230361a005
1317955a709
14c49d5189
1579278bd8
hex4d830c85

1300434053 has 4 divisors (see below), whose sum is σ = 1356974688. Its totient is φ = 1243893420.

The previous prime is 1300434029. The next prime is 1300434071. The reversal of 1300434053 is 3504340031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3504340031 = 19184438949.

It is a cyclic number.

It is not a de Polignac number, because 1300434053 - 218 = 1300171909 is a prime.

It is a super-2 number, since 2×13004340532 = 3382257452404013618, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 56540611 = 1300434053 / (1 + 3 + 0 + 0 + 4 + 3 + 4 + 0 + 5 + 3).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1300434013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28270283 + ... + 28270328.

It is an arithmetic number, because the mean of its divisors is an integer number (339243672).

Almost surely, 21300434053 is an apocalyptic number.

It is an amenable number.

1300434053 is a deficient number, since it is larger than the sum of its proper divisors (56540635).

1300434053 is an equidigital number, since it uses as much as digits as its factorization.

1300434053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56540634.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 1300434053 is about 36061.5314843948. The cubic root of 1300434053 is about 1091.5143368154.

Adding to 1300434053 its reverse (3504340031), we get a palindrome (4804774084).

The spelling of 1300434053 in words is "one billion, three hundred million, four hundred thirty-four thousand, fifty-three".

Divisors: 1 23 56540611 1300434053