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315445102 = 2722799259
BaseRepresentation
bin10010110011010…
…100111101101110
3210222120021022221
4102303110331232
51121223220402
651145025554
710550145010
oct2263247556
9728507287
10315445102
11152073635
12897852ba
1350477c0b
142dc741b0
151ca60337
hex12cd4f6e

315445102 has 16 divisors (see below), whose sum is σ = 543150720. Its totient is φ = 134593848.

The previous prime is 315445099. The next prime is 315445129. The reversal of 315445102 is 201544513.

It is a happy number.

It is a super-2 number, since 2×3154451022 = 199011224751580808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 46452 + ... + 52807.

It is an arithmetic number, because the mean of its divisors is an integer number (33946920).

Almost surely, 2315445102 is an apocalyptic number.

315445102 is a deficient number, since it is larger than the sum of its proper divisors (227705618).

315445102 is a wasteful number, since it uses less digits than its factorization.

315445102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99495.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 315445102 is about 17760.7742511412. The cubic root of 315445102 is about 680.7295385450.

Adding to 315445102 its reverse (201544513), we get a palindrome (516989615).

The spelling of 315445102 in words is "three hundred fifteen million, four hundred forty-five thousand, one hundred two".

Divisors: 1 2 7 14 227 454 1589 3178 99259 198518 694813 1389626 22531793 45063586 157722551 315445102