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1663085470 = 251371213931
BaseRepresentation
bin110001100100000…
…1010101110011110
311021220101111101011
41203020022232132
511401222213340
6433005405434
756132664454
oct14310125636
94256344334
101663085470
1178384a802
123a4b6987a
13206723257
1411ac369d4
159b0110ea
hex6320ab9e

1663085470 has 16 divisors (see below), whose sum is σ = 3015407088. Its totient is φ = 660377920.

The previous prime is 1663085453. The next prime is 1663085491. The reversal of 1663085470 is 745803661.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 605596 + ... + 608335.

It is an arithmetic number, because the mean of its divisors is an integer number (188462943).

Almost surely, 21663085470 is an apocalyptic number.

1663085470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1663085470 is a deficient number, since it is larger than the sum of its proper divisors (1352321618).

1663085470 is a wasteful number, since it uses less digits than its factorization.

1663085470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214075.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 1663085470 is about 40780.9449375563. The cubic root of 1663085470 is about 1184.7812969126.

The spelling of 1663085470 in words is "one billion, six hundred sixty-three million, eighty-five thousand, four hundred seventy".

Divisors: 1 2 5 10 137 274 685 1370 1213931 2427862 6069655 12139310 166308547 332617094 831542735 1663085470