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1420768570 = 251317236343
BaseRepresentation
bin101010010101111…
…0011010100111010
310200000102112002011
41110223303110322
510402204043240
6352552000134
750131222264
oct12453632472
93600375064
101420768570
11669a94501
1233799004a
13198470980
14d699ab34
1584ae86ea
hex54af353a

1420768570 has 32 divisors (see below), whose sum is σ = 2756138112. Its totient is φ = 524204352.

The previous prime is 1420768561. The next prime is 1420768597. The reversal of 1420768570 is 758670241.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 220819 + ... + 227161.

It is an arithmetic number, because the mean of its divisors is an integer number (86129316).

Almost surely, 21420768570 is an apocalyptic number.

1420768570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1420768570 is a deficient number, since it is larger than the sum of its proper divisors (1335369542).

1420768570 is a wasteful number, since it uses less digits than its factorization.

1420768570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8086.

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 1420768570 is about 37693.0838483667. The cubic root of 1420768570 is about 1124.1936134055.

The spelling of 1420768570 in words is "one billion, four hundred twenty million, seven hundred sixty-eight thousand, five hundred seventy".

Divisors: 1 2 5 10 13 26 65 130 1723 3446 6343 8615 12686 17230 22399 31715 44798 63430 82459 111995 164918 223990 412295 824590 10928989 21857978 54644945 109289890 142076857 284153714 710384285 1420768570