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1300553021 = 1979518609
BaseRepresentation
bin100110110000100…
…1101110100111101
310100122012221100102
41031201031310331
510130420144041
6333015210445
744141342525
oct11541156475
93318187312
101300553021
11608145809
12303676a25
1317959c901
14c4a26685
157929e09b
hex4d84dd3d

1300553021 has 8 divisors (see below), whose sum is σ = 1369334400. Its totient is φ = 1231804800.

The previous prime is 1300552987. The next prime is 1300553029. The reversal of 1300553021 is 1203550031.

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

It is a cyclic number.

It is not a de Polignac number, because 1300553021 - 214 = 1300536637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1300552984 and 1300553002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1300553029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146765 + ... + 155373.

It is an arithmetic number, because the mean of its divisors is an integer number (171166800).

Almost surely, 21300553021 is an apocalyptic number.

It is an amenable number.

1300553021 is a deficient number, since it is larger than the sum of its proper divisors (68781379).

1300553021 is an equidigital number, since it uses as much as digits as its factorization.

1300553021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16579.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 1300553021 is about 36063.1809606418. The cubic root of 1300553021 is about 1091.5476209120.

The spelling of 1300553021 in words is "one billion, three hundred million, five hundred fifty-three thousand, twenty-one".

Divisors: 1 19 7951 8609 151069 163571 68450159 1300553021