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513242670 = 23571240959
BaseRepresentation
bin11110100101110…
…111011000101110
31022202202102120210
4132211313120232
52022342231140
6122532323250
715501330213
oct3645673056
91282672523
10513242670
112437918a6
12123a73526
13824408b5
144c241b0a
15300d1d80
hex1e97762e

513242670 has 32 divisors (see below), whose sum is σ = 1249136640. Its totient is φ = 134936480.

The previous prime is 513242669. The next prime is 513242683. The reversal of 513242670 is 76242315.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118350 + ... + 122609.

It is an arithmetic number, because the mean of its divisors is an integer number (39035520).

Almost surely, 2513242670 is an apocalyptic number.

513242670 is an abundant number, since it is smaller than the sum of its proper divisors (735893970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

513242670 is a wasteful number, since it uses less digits than its factorization.

513242670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241040.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 513242670 is about 22654.8597435517. The cubic root of 513242670 is about 800.6467010397.

Adding to 513242670 its reverse (76242315), we get a palindrome (589484985).

The spelling of 513242670 in words is "five hundred thirteen million, two hundred forty-two thousand, six hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 71 142 213 355 426 710 1065 2130 240959 481918 722877 1204795 1445754 2409590 3614385 7228770 17108089 34216178 51324267 85540445 102648534 171080890 256621335 513242670