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249192480 = 2535519151
BaseRepresentation
bin11101101101001…
…10000000100000
3122100220021211010
432312212000200
51002243124410
640421020520
76114046455
oct1666460040
9570807733
10249192480
11118731aa9
126b554740
133c81bc94
142514982c
1516d24c20
hexeda6020

249192480 has 48 divisors (see below), whose sum is σ = 784957824. Its totient is φ = 66451200.

The previous prime is 249192479. The next prime is 249192481. The reversal of 249192480 is 84291942.

249192480 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (249192479) and next prime (249192481).

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (249192481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259096 + ... + 260055.

It is an arithmetic number, because the mean of its divisors is an integer number (16353288).

Almost surely, 2249192480 is an apocalyptic number.

249192480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

249192480 is an abundant number, since it is smaller than the sum of its proper divisors (535765344).

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

249192480 is a wasteful number, since it uses less digits than its factorization.

249192480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519169 (or 519161 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 249192480 is about 15785.8316220591. The cubic root of 249192480 is about 629.2815190432.

The spelling of 249192480 in words is "two hundred forty-nine million, one hundred ninety-two thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 96 120 160 240 480 519151 1038302 1557453 2076604 2595755 3114906 4153208 5191510 6229812 7787265 8306416 10383020 12459624 15574530 16612832 20766040 24919248 31149060 41532080 49838496 62298120 83064160 124596240 249192480