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248980780 = 22595313063
BaseRepresentation
bin11101101011100…
…10010100101100
3122100111112102101
432311302110230
51002214341110
640412304444
76112205326
oct1665622454
9570445371
10248980780
111185a7a44
126b472124
133c776809
14250d2616
1516cd213a
hexed7252c

248980780 has 24 divisors (see below), whose sum is σ = 523448352. Its totient is φ = 99480192.

The previous prime is 248980757. The next prime is 248980789. The reversal of 248980780 is 87089842.

It is a self number, because there is not a number n which added to its sum of digits gives 248980780.

It is not an unprimeable number, because it can be changed into a prime (248980789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12529 + ... + 25591.

It is an arithmetic number, because the mean of its divisors is an integer number (21810348).

Almost surely, 2248980780 is an apocalyptic number.

248980780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

248980780 is an abundant number, since it is smaller than the sum of its proper divisors (274467572).

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

248980780 is a wasteful number, since it uses less digits than its factorization.

248980780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14025 (or 14023 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 46.

The square root of 248980780 is about 15779.1248173021. The cubic root of 248980780 is about 629.1032677566.

The spelling of 248980780 in words is "two hundred forty-eight million, nine hundred eighty thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 953 1906 3812 4765 9530 13063 19060 26126 52252 65315 130630 261260 12449039 24898078 49796156 62245195 124490390 248980780