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431006668 = 22137378479
BaseRepresentation
bin11001101100001…
…010001111001100
31010001000101222221
4121230022033030
51340314203133
6110433545124
713452332131
oct3154121714
91101011887
10431006668
11201323764
121004151a4
136b3a9841
1441356588
1527c8aa2d
hex19b0a3cc

431006668 has 12 divisors (see below), whose sum is σ = 754820640. Its totient is φ = 215343632.

The previous prime is 431006651. The next prime is 431006669. The reversal of 431006668 is 866600134.

It is not an unprimeable number, because it can be changed into a prime (431006669) 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, 33748 + ... + 44731.

It is an arithmetic number, because the mean of its divisors is an integer number (62901720).

Almost surely, 2431006668 is an apocalyptic number.

It is an amenable number.

431006668 is a deficient number, since it is larger than the sum of its proper divisors (323813972).

431006668 is a wasteful number, since it uses less digits than its factorization.

431006668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79856 (or 79854 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 431006668 is about 20760.7000845347. The cubic root of 431006668 is about 755.3727779168.

It can be divided in two parts, 4310066 and 68, that added together give a palindrome (4310134).

The spelling of 431006668 in words is "four hundred thirty-one million, six thousand, six hundred sixty-eight".

Divisors: 1 2 4 1373 2746 5492 78479 156958 313916 107751667 215503334 431006668