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431031044 = 22137786553
BaseRepresentation
bin11001101100010…
…000001100000100
31010001001122102202
4121230100030010
51340320443134
6110434254032
713452463163
oct3154201404
91101048382
10431031044
11201340004
12100427318
136b3b7972
14413613da
1527c92d7e
hex19b10304

431031044 has 12 divisors (see below), whose sum is σ = 759811164. Its totient is φ = 213942144.

The previous prime is 431031023. The next prime is 431031053. The reversal of 431031044 is 440130134.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 332624644 + 98406400 = 18238^2 + 9920^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392729 + ... + 393824.

It is an arithmetic number, because the mean of its divisors is an integer number (63317597).

Almost surely, 2431031044 is an apocalyptic number.

It is an amenable number.

431031044 is a deficient number, since it is larger than the sum of its proper divisors (328780120).

431031044 is a wasteful number, since it uses less digits than its factorization.

431031044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786694 (or 786692 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 431031044 is about 20761.2871469955. The cubic root of 431031044 is about 755.3870179283.

Adding to 431031044 its reverse (440130134), we get a palindrome (871161178).

The spelling of 431031044 in words is "four hundred thirty-one million, thirty-one thousand, forty-four".

Divisors: 1 2 4 137 274 548 786553 1573106 3146212 107757761 215515522 431031044