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1351041668 = 221553217489
BaseRepresentation
bin101000010000111…
…0100001010000100
310111011020000202022
41100201310022010
510231331313133
6342021302312
745323443664
oct12041641204
93434200668
101351041668
1163369a669
12318564998
13186b99552
14cb60a1a4
157d923998
hex50874284

1351041668 has 12 divisors (see below), whose sum is σ = 2365856220. Its totient is φ = 675082752.

The previous prime is 1351041661. The next prime is 1351041761. The reversal of 1351041668 is 8661401531.

It can be written as a sum of positive squares in 2 ways, for example, as 337383424 + 1013658244 = 18368^2 + 31838^2 .

It is not an unprimeable number, because it can be changed into a prime (1351041661) 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, 102533 + ... + 114956.

It is an arithmetic number, because the mean of its divisors is an integer number (197154685).

Almost surely, 21351041668 is an apocalyptic number.

It is an amenable number.

1351041668 is a deficient number, since it is larger than the sum of its proper divisors (1014814552).

1351041668 is a wasteful number, since it uses less digits than its factorization.

1351041668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219046 (or 219044 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 1351041668 is about 36756.5187143723. The cubic root of 1351041668 is about 1105.4936385642.

The spelling of 1351041668 in words is "one billion, three hundred fifty-one million, forty-one thousand, six hundred sixty-eight".

Divisors: 1 2 4 1553 3106 6212 217489 434978 869956 337760417 675520834 1351041668