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315404045 = 5112521329
BaseRepresentation
bin10010110011001…
…010111100001101
3210222111012000022
4102303022330031
51121220412140
651144111525
710546614215
oct2263127415
9728435008
10315404045
11152045800
12897655a5
1350462318
142dc63245
151ca530b5
hex12ccaf0d

315404045 has 12 divisors (see below), whose sum is σ = 416021340. Its totient is φ = 229384320.

The previous prime is 315404027. The next prime is 315404093. The reversal of 315404045 is 540404513.

It can be written as a sum of positive squares in 2 ways, for example, as 180983209 + 134420836 = 13453^2 + 11594^2 .

It is not a de Polignac number, because 315404045 - 28 = 315403789 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 260060 + ... + 261269.

It is an arithmetic number, because the mean of its divisors is an integer number (34668445).

Almost surely, 2315404045 is an apocalyptic number.

It is an amenable number.

315404045 is a deficient number, since it is larger than the sum of its proper divisors (100617295).

315404045 is a wasteful number, since it uses less digits than its factorization.

315404045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521356 (or 521345 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 315404045 is about 17759.6183799090. The cubic root of 315404045 is about 680.7000036380.

Adding to 315404045 its reverse (540404513), we get a palindrome (855808558).

The spelling of 315404045 in words is "three hundred fifteen million, four hundred four thousand, forty-five".

Divisors: 1 5 11 55 121 605 521329 2606645 5734619 28673095 63080809 315404045