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319312741 = 1131936401
BaseRepresentation
bin10011000010000…
…101001101100101
3211020211202201211
4103002011031211
51123221001431
651403551421
710625053636
oct2302051545
9736752654
10319312741
11154275430
128ab2b571
1351200467
143059d88d
151d0762b1
hex13085365

319312741 has 8 divisors (see below), whose sum is σ = 359578368. Its totient is φ = 280920000.

The previous prime is 319312739. The next prime is 319312759. The reversal of 319312741 is 147213913.

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

It is a cyclic number.

It is not a de Polignac number, because 319312741 - 21 = 319312739 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (319312781) 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, 467860 + ... + 468541.

It is an arithmetic number, because the mean of its divisors is an integer number (44947296).

Almost surely, 2319312741 is an apocalyptic number.

319312741 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

319312741 is a deficient number, since it is larger than the sum of its proper divisors (40265627).

319312741 is a wasteful number, since it uses less digits than its factorization.

319312741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936443.

The product of its digits is 4536, while the sum is 31.

The square root of 319312741 is about 17869.3240219097. The cubic root of 319312741 is about 683.5003625534.

The spelling of 319312741 in words is "three hundred nineteen million, three hundred twelve thousand, seven hundred forty-one".

Divisors: 1 11 31 341 936401 10300411 29028431 319312741