Search a number
-
+
202145629121280 = 283751341612221
BaseRepresentation
bin101101111101100110110010…
…011010101010101100000000
3222111201221012110100210000000
4231331212302122222230000
5202443423222023340110
61553532230420000000
760402353064034305
oct5575466232525400
9874657173323000
10202145629121280
1159456530793419
121a809216230000
1388a4335697720
1437cbc8756b0ac
1518584120661c0
hexb7d9b26aab00

202145629121280 has 2304 divisors, whose sum is σ = 814627495503360. Its totient is φ = 47727968256000.

The previous prime is 202145629121263. The next prime is 202145629121291. The reversal of 202145629121280 is 82121926541202.

202145629121280 is a `hidden beast` number, since 2 + 0 + 2 + 1 + 4 + 5 + 629 + 1 + 2 + 12 + 8 + 0 = 666.

202145629121280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (2304).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 91015590570 + ... + 91015592790.

It is an arithmetic number, because the mean of its divisors is an integer number (353570961590).

Almost surely, 2202145629121280 is an apocalyptic number.

202145629121280 is a gapful number since it is divisible by the number (20) 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 202145629121280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (407313747751680).

202145629121280 is an abundant number, since it is smaller than the sum of its proper divisors (612481866382080).

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

202145629121280 is an equidigital number, since it uses as much as digits as its factorization.

202145629121280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2378 (or 2346 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 202145629121280 in words is "two hundred two trillion, one hundred forty-five billion, six hundred twenty-nine million, one hundred twenty-one thousand, two hundred eighty".