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507106765 = 5112838193
BaseRepresentation
bin11110001110011…
…101010111001101
31022100012200201001
4132032131113031
52014304404030
6122153020301
715365223244
oct3616352715
91270180631
10507106765
11240280900
121219b4691
13810a2a99
144b4c595b
152e7bdcca
hex1e39d5cd

507106765 has 12 divisors (see below), whose sum is σ = 668878812. Its totient is φ = 368804480.

The previous prime is 507106763. The next prime is 507106777. The reversal of 507106765 is 567601705.

It can be written as a sum of positive squares in 2 ways, for example, as 373958244 + 133148521 = 19338^2 + 11539^2 .

It is not a de Polignac number, because 507106765 - 21 = 507106763 is a prime.

It is a super-2 number, since 2×5071067652 = 514314542217530450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (507106763) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 418492 + ... + 419701.

It is an arithmetic number, because the mean of its divisors is an integer number (55739901).

Almost surely, 2507106765 is an apocalyptic number.

507106765 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

507106765 is a deficient number, since it is larger than the sum of its proper divisors (161772047).

507106765 is a wasteful number, since it uses less digits than its factorization.

507106765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838220 (or 838209 counting only the distinct ones).

The product of its (nonzero) digits is 44100, while the sum is 37.

The square root of 507106765 is about 22519.0311736540. The cubic root of 507106765 is about 797.4432777731.

It can be divided in two parts, 50710 and 6765, that added together give a palindrome (57475).

The spelling of 507106765 in words is "five hundred seven million, one hundred six thousand, seven hundred sixty-five".

Divisors: 1 5 11 55 121 605 838193 4190965 9220123 46100615 101421353 507106765