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1669923060 = 2235134349789
BaseRepresentation
bin110001110001001…
…0000000011110100
311022101020212210020
41203202100003310
511410000014220
6433412125140
756245053231
oct14342200364
94271225706
101669923060
1178769aa03
123a73067b0
13207c78570
1411bad6788
159b912040
hex638900f4

1669923060 has 96 divisors (see below), whose sum is σ = 5152667520. Its totient is φ = 401490432.

The previous prime is 1669923029. The next prime is 1669923061. The reversal of 1669923060 is 603299661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1669923061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8646 + ... + 58434.

It is an arithmetic number, because the mean of its divisors is an integer number (53673620).

Almost surely, 21669923060 is an apocalyptic number.

1669923060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1669923060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2576333760).

1669923060 is an abundant number, since it is smaller than the sum of its proper divisors (3482744460).

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

1669923060 is a wasteful number, since it uses less digits than its factorization.

1669923060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49857 (or 49855 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 42.

The square root of 1669923060 is about 40864.6920947656. The cubic root of 1669923060 is about 1186.4027753829.

The spelling of 1669923060 in words is "one billion, six hundred sixty-nine million, nine hundred twenty-three thousand, sixty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 43 52 60 65 78 86 129 130 156 172 195 215 258 260 390 430 516 559 645 780 860 1118 1290 1677 2236 2580 2795 3354 5590 6708 8385 11180 16770 33540 49789 99578 149367 199156 248945 298734 497890 597468 647257 746835 995780 1294514 1493670 1941771 2140927 2589028 2987340 3236285 3883542 4281854 6422781 6472570 7767084 8563708 9708855 10704635 12845562 12945140 19417710 21409270 25691124 27832051 32113905 38835420 42818540 55664102 64227810 83496153 111328204 128455620 139160255 166992306 278320510 333984612 417480765 556641020 834961530 1669923060