Search a number
-
+
780493067025 = 352719232211701
BaseRepresentation
bin10110101101110010000…
…00110001001100010001
32202121120220101212112120
423112321000301030101
5100241422211121100
61354315323044453
7110250226415220
oct13267100611421
92677526355476
10780493067025
11281006a97291
12107321670729
13587a579a299
1429ac174ccb7
15154809c00a0
hexb5b9031311

780493067025 has 288 divisors, whose sum is σ = 1632825492480. Its totient is φ = 321330240000.

The previous prime is 780493067021. The next prime is 780493067033. The reversal of 780493067025 is 520760394087.

It is not a de Polignac number, because 780493067025 - 22 = 780493067021 is a prime.

It is a super-2 number, since 2×7804930670252 (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (780493067021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 1113399175 + ... + 1113399875.

It is an arithmetic number, because the mean of its divisors is an integer number (5669532960).

Almost surely, 2780493067025 is an apocalyptic number.

780493067025 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

780493067025 is an abundant number, since it is smaller than the sum of its proper divisors (852332425455).

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

780493067025 is a wasteful number, since it uses less digits than its factorization.

780493067025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997 (or 969 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 51.

The spelling of 780493067025 in words is "seven hundred eighty billion, four hundred ninety-three million, sixty-seven thousand, twenty-five".