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1425669760 = 2752227609
BaseRepresentation
bin101010011111001…
…1111111010000000
310200100122112020201
41110332133322000
510404432413020
6353245014544
750220664414
oct12476377200
93610575221
101425669760
11671831879
12339554454
13199498798
14d74b4d44
1585265a0a
hex54f9fe80

1425669760 has 32 divisors (see below), whose sum is σ = 3408243300. Its totient is φ = 570267648.

The previous prime is 1425669733. The next prime is 1425669767. The reversal of 1425669760 is 679665241.

It can be written as a sum of positive squares in 2 ways, for example, as 1385626176 + 40043584 = 37224^2 + 6328^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 1425669760.

It is not an unprimeable number, because it can be changed into a prime (1425669767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1113165 + ... + 1114444.

Almost surely, 21425669760 is an apocalyptic number.

1425669760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1425669760 is an abundant number, since it is smaller than the sum of its proper divisors (1982573540).

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

1425669760 is an equidigital number, since it uses as much as digits as its factorization.

1425669760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2227628 (or 2227616 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 46.

The square root of 1425669760 is about 37758.0423221332. The cubic root of 1425669760 is about 1125.4848306978.

The spelling of 1425669760 in words is "one billion, four hundred twenty-five million, six hundred sixty-nine thousand, seven hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 320 640 2227609 4455218 8910436 11138045 17820872 22276090 35641744 44552180 71283488 89104360 142566976 178208720 285133952 356417440 712834880 1425669760