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199494666080 = 2554432814541
BaseRepresentation
bin1011100111001011001…
…1110000011101100000
3201001221010102001200022
42321302303300131200
511232031113303310
6231351355013012
720261443453163
oct2716263603540
9631833361608
10199494666080
11776725a1366
12327b643a168
1315a7371a318
149926d3bada
1552c8e05a55
hex2e72cf0760

199494666080 has 48 divisors (see below), whose sum is σ = 472370212944. Its totient is φ = 79617707520.

The previous prime is 199494666031. The next prime is 199494666089. The reversal of 199494666080 is 80666494991.

199494666080 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199494666089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1336391 + ... + 1478150.

It is an arithmetic number, because the mean of its divisors is an integer number (9841046103).

Almost surely, 2199494666080 is an apocalyptic number.

199494666080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199494666080 is an abundant number, since it is smaller than the sum of its proper divisors (272875546864).

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

199494666080 is a wasteful number, since it uses less digits than its factorization.

199494666080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2814999 (or 2814991 counting only the distinct ones).

The product of its (nonzero) digits is 20155392, while the sum is 62.

The spelling of 199494666080 in words is "one hundred ninety-nine billion, four hundred ninety-four million, six hundred sixty-six thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 443 886 1772 2215 3544 4430 7088 8860 14176 17720 35440 70880 2814541 5629082 11258164 14072705 22516328 28145410 45032656 56290820 90065312 112581640 225163280 450326560 1246841663 2493683326 4987366652 6234208315 9974733304 12468416630 19949466608 24936833260 39898933216 49873666520 99747333040 199494666080