Search a number
-
+
1206931229 = 71371258531
BaseRepresentation
bin100011111110000…
…0100111100011101
310010010001110101122
41013330010330131
54432433244404
6315432420325
741623513640
oct10774047435
93103043348
101206931229
1156a310329
122982476a5
131630802ba
14b6415a57
1570e593be
hex47f04f1d

1206931229 has 8 divisors (see below), whose sum is σ = 1389419328. Its totient is φ = 1026960480.

The previous prime is 1206931151. The next prime is 1206931289. The reversal of 1206931229 is 9221396021.

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

It is a de Polignac number, because none of the positive numbers 2k-1206931229 is a prime.

It is a super-3 number, since 3×12069312293 (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1206931289) 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, 628307 + ... + 630224.

It is an arithmetic number, because the mean of its divisors is an integer number (173677416).

Almost surely, 21206931229 is an apocalyptic number.

It is an amenable number.

1206931229 is a deficient number, since it is larger than the sum of its proper divisors (182488099).

1206931229 is a wasteful number, since it uses less digits than its factorization.

1206931229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1258675.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 1206931229 is about 34740.9157766458. The cubic root of 1206931229 is about 1064.7006230892.

The spelling of 1206931229 in words is "one billion, two hundred six million, nine hundred thirty-one thousand, two hundred twenty-nine".

Divisors: 1 7 137 959 1258531 8809717 172418747 1206931229