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712415380 = 22535620769
BaseRepresentation
bin101010011101101…
…001100010010100
31211122112110011211
4222131221202110
52424334243010
6154405311204
723440300525
oct5235514224
91748473154
10712415380
1133615a246
1217a705504
13b4798481
146a88a84c
154282608a
hex2a769894

712415380 has 12 divisors (see below), whose sum is σ = 1496072340. Its totient is φ = 284966144.

The previous prime is 712415377. The next prime is 712415381. The reversal of 712415380 is 83514217.

It can be written as a sum of positive squares in 2 ways, for example, as 279692176 + 432723204 = 16724^2 + 20802^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712415381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17810365 + ... + 17810404.

It is an arithmetic number, because the mean of its divisors is an integer number (124672695).

Almost surely, 2712415380 is an apocalyptic number.

It is an amenable number.

712415380 is an abundant number, since it is smaller than the sum of its proper divisors (783656960).

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

712415380 is a wasteful number, since it uses less digits than its factorization.

712415380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35620778 (or 35620776 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 712415380 is about 26691.1105051851. The cubic root of 712415380 is about 893.1226338439.

Adding to 712415380 its reverse (83514217), we get a palindrome (795929597).

The spelling of 712415380 in words is "seven hundred twelve million, four hundred fifteen thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 35620769 71241538 142483076 178103845 356207690 712415380