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1349280867 = 31140887299
BaseRepresentation
bin101000001101100…
…0110010001100011
310111000220120101110
41100123012101203
510230403441432
6341515434403
745302461314
oct12033062143
93430816343
101349280867
116326a7760
12317a55a03
13186700c5c
14cb2ac60b
157d6c6dcc
hex506c6463

1349280867 has 8 divisors (see below), whose sum is σ = 1962590400. Its totient is φ = 817745960.

The previous prime is 1349280857. The next prime is 1349280869. The reversal of 1349280867 is 7680829431.

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-1349280867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1349280869) 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, 20443617 + ... + 20443682.

It is an arithmetic number, because the mean of its divisors is an integer number (245323800).

Almost surely, 21349280867 is an apocalyptic number.

1349280867 is a deficient number, since it is larger than the sum of its proper divisors (613309533).

1349280867 is a wasteful number, since it uses less digits than its factorization.

1349280867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40887313.

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 1349280867 is about 36732.5586775547. The cubic root of 1349280867 is about 1105.0131696526.

The spelling of 1349280867 in words is "one billion, three hundred forty-nine million, two hundred eighty thousand, eight hundred sixty-seven".

Divisors: 1 3 11 33 40887299 122661897 449760289 1349280867