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670511034 = 2344138957
BaseRepresentation
bin100111111101110…
…010111110111010
31201201200111020000
4213331302332322
52333122323114
6150311213430
722421151444
oct4775627672
91651614200
10670511034
11314538956
12168677276
13a8bb5bbb
146509d494
153dce9e09
hex27f72fba

670511034 has 20 divisors (see below), whose sum is σ = 1502441754. Its totient is φ = 223503624.

The previous prime is 670511033. The next prime is 670511041. The reversal of 670511034 is 430115076.

It can be written as a sum of positive squares in only one way, i.e., 445421025 + 225090009 = 21105^2 + 15003^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 670510989 and 670511007.

It is not an unprimeable number, because it can be changed into a prime (670511033) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2069317 + ... + 2069640.

Almost surely, 2670511034 is an apocalyptic number.

670511034 is an abundant number, since it is smaller than the sum of its proper divisors (831930720).

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

670511034 is a wasteful number, since it uses less digits than its factorization.

670511034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4138971 (or 4138962 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 670511034 is about 25894.2278123909. The cubic root of 670511034 is about 875.2564294415.

The spelling of 670511034 in words is "six hundred seventy million, five hundred eleven thousand, thirty-four".

Divisors: 1 2 3 6 9 18 27 54 81 162 4138957 8277914 12416871 24833742 37250613 74501226 111751839 223503678 335255517 670511034