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1299480479 = 11456725867
BaseRepresentation
bin100110101110100…
…0111111110011111
310100120012110002122
41031131013332133
510130131333404
6332540213155
744126254553
oct11535077637
93316173078
101299480479
11607582a10
1230323a1bb
131792b567b
14c4827863
157913b3be
hex4d747f9f

1299480479 has 8 divisors (see below), whose sum is σ = 1417980288. Its totient is φ = 1181041560.

The previous prime is 1299480467. The next prime is 1299480529. The reversal of 1299480479 is 9740849921.

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-1299480479 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1299480479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1299480409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37304 + ... + 63170.

It is an arithmetic number, because the mean of its divisors is an integer number (177247536).

Almost surely, 21299480479 is an apocalyptic number.

1299480479 is a deficient number, since it is larger than the sum of its proper divisors (118499809).

1299480479 is a wasteful number, since it uses less digits than its factorization.

1299480479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30445.

The product of its (nonzero) digits is 1306368, while the sum is 53.

The square root of 1299480479 is about 36048.3075746976. The cubic root of 1299480479 is about 1091.2474786844.

The spelling of 1299480479 in words is "one billion, two hundred ninety-nine million, four hundred eighty thousand, four hundred seventy-nine".

Divisors: 1 11 4567 25867 50237 284537 118134589 1299480479