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319052945 = 5127949891
BaseRepresentation
bin10011000001000…
…101110010010001
3211020100120100202
4103001011302101
51123134143240
651354224545
710622622341
oct2301056221
9736316322
10319052945
11154108222
128aa25155
135113c133
1430532d21
151d024315
hex13045c91

319052945 has 8 divisors (see below), whose sum is σ = 383170560. Its totient is φ = 255037680.

The previous prime is 319052933. The next prime is 319052953. The reversal of 319052945 is 549250913.

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

It is not a de Polignac number, because 319052945 - 28 = 319052689 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 319052899 and 319052908.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18551 + ... + 31340.

It is an arithmetic number, because the mean of its divisors is an integer number (47896320).

Almost surely, 2319052945 is an apocalyptic number.

It is an amenable number.

319052945 is a deficient number, since it is larger than the sum of its proper divisors (64117615).

319052945 is a wasteful number, since it uses less digits than its factorization.

319052945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51175.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 319052945 is about 17862.0532134467. The cubic root of 319052945 is about 683.3149447097.

The spelling of 319052945 in words is "three hundred nineteen million, fifty-two thousand, nine hundred forty-five".

Divisors: 1 5 1279 6395 49891 249455 63810589 319052945