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407270740 = 22520363537
BaseRepresentation
bin11000010001100…
…111010101010100
31001101100111102111
4120101213111110
51313230130430
6104225120404
713043513152
oct3021472524
91041314374
10407270740
11199991598
12b4489104
13664b8b06
143c1383d2
1525b4cc2a
hex18467554

407270740 has 12 divisors (see below), whose sum is σ = 855268596. Its totient is φ = 162908288.

The previous prime is 407270737. The next prime is 407270767. The reversal of 407270740 is 47072704.

It can be written as a sum of positive squares in 2 ways, for example, as 186213316 + 221057424 = 13646^2 + 14868^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10181749 + ... + 10181788.

It is an arithmetic number, because the mean of its divisors is an integer number (71272383).

Almost surely, 2407270740 is an apocalyptic number.

It is an amenable number.

407270740 is an abundant number, since it is smaller than the sum of its proper divisors (447997856).

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

407270740 is a wasteful number, since it uses less digits than its factorization.

407270740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20363546 (or 20363544 counting only the distinct ones).

The product of its (nonzero) digits is 10976, while the sum is 31.

The square root of 407270740 is about 20180.9499280881. The cubic root of 407270740 is about 741.2437933329.

The spelling of 407270740 in words is "four hundred seven million, two hundred seventy thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 20363537 40727074 81454148 101817685 203635370 407270740