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318245429 = 621151239
BaseRepresentation
bin10010111110000…
…000101000110101
3211011211112122202
4102332000220311
51122432323204
651325034245
710613020145
oct2276005065
9734745582
10318245429
11153706557
128a6b5985
1350c18708
14303a2925
151ce14e1e
hex12f80a35

318245429 has 4 divisors (see below), whose sum is σ = 318302880. Its totient is φ = 318187980.

The previous prime is 318245407. The next prime is 318245453. The reversal of 318245429 is 924542813.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 318245429 - 216 = 318179893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 318245392 and 318245401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318745429) 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 3 ways as a sum of consecutive naturals, for example, 19409 + ... + 31830.

It is an arithmetic number, because the mean of its divisors is an integer number (79575720).

Almost surely, 2318245429 is an apocalyptic number.

It is an amenable number.

318245429 is a deficient number, since it is larger than the sum of its proper divisors (57451).

318245429 is an equidigital number, since it uses as much as digits as its factorization.

318245429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57450.

The product of its digits is 69120, while the sum is 38.

The square root of 318245429 is about 17839.4346603249. The cubic root of 318245429 is about 682.7379726260.

The spelling of 318245429 in words is "three hundred eighteen million, two hundred forty-five thousand, four hundred twenty-nine".

Divisors: 1 6211 51239 318245429