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1301326049 = 89106113781
BaseRepresentation
bin100110110010000…
…1010100011100001
310100200200012202002
41031210022203201
510131114413144
6333043533345
744151042332
oct11544124341
93320605662
101301326049
11608623581
1230398a255
131797b071a
14c4b88289
15793a314e
hex4d90a8e1

1301326049 has 8 divisors (see below), whose sum is σ = 1317283560. Its totient is φ = 1285398400.

The previous prime is 1301326027. The next prime is 1301326051. The reversal of 1301326049 is 9406231031.

It can be written as a sum of positive squares in 4 ways, for example, as 147501025 + 1153825024 = 12145^2 + 33968^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1301326049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1301326079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87539 + ... + 101319.

It is an arithmetic number, because the mean of its divisors is an integer number (164660445).

Almost surely, 21301326049 is an apocalyptic number.

It is an amenable number.

1301326049 is a deficient number, since it is larger than the sum of its proper divisors (15957511).

1301326049 is a wasteful number, since it uses less digits than its factorization.

1301326049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14931.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 1301326049 is about 36073.8970586767. The cubic root of 1301326049 is about 1091.7638442508.

The spelling of 1301326049 in words is "one billion, three hundred one million, three hundred twenty-six thousand, forty-nine".

Divisors: 1 89 1061 13781 94429 1226509 14621641 1301326049