Search a number
-
+
1220868963200 = 2752898295171
BaseRepresentation
bin10001110001000001011…
…101011111101110000000
311022201021110100021122102
4101301001131133232000
5130000314423310300
62332505350525532
7154130161651235
oct21610135375600
94281243307572
101220868963200
1143084977a017
121787426668a8
138b187010143
1443139dab78c
1521b56da20d5
hex11c4175fb80

1220868963200 has 192 divisors, whose sum is σ = 3054084102000. Its totient is φ = 482184806400.

The previous prime is 1220868963191. The next prime is 1220868963271. The reversal of 1220868963200 is 23698680221.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 236096615 + ... + 236101785.

Almost surely, 21220868963200 is an apocalyptic number.

1220868963200 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 1220868963200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1527042051000).

1220868963200 is an abundant number, since it is smaller than the sum of its proper divisors (1833215138800).

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

1220868963200 is an equidigital number, since it uses as much as digits as its factorization.

1220868963200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6113 (or 6096 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 47.

The spelling of 1220868963200 in words is "one trillion, two hundred twenty billion, eight hundred sixty-eight million, nine hundred sixty-three thousand, two hundred".