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297316480 = 275464557
BaseRepresentation
bin10001101110001…
…011000010000000
3202201110020112111
4101232023002000
51102103111410
645300305104
710240101616
oct2156130200
9681406474
10297316480
111429112aa
12836a2194
134979b516
142b6b56b6
151b17db8a
hex11b8b080

297316480 has 32 divisors (see below), whose sum is σ = 710773740. Its totient is φ = 118926336.

The previous prime is 297316477. The next prime is 297316489. The reversal of 297316480 is 84613792.

It can be written as a sum of positive squares in 2 ways, for example, as 296115264 + 1201216 = 17208^2 + 1096^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (297316489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231639 + ... + 232918.

Almost surely, 2297316480 is an apocalyptic number.

297316480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

297316480 is an abundant number, since it is smaller than the sum of its proper divisors (413457260).

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

297316480 is an equidigital number, since it uses as much as digits as its factorization.

297316480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464576 (or 464564 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 297316480 is about 17242.8675109449. The cubic root of 297316480 is about 667.4309279666.

The spelling of 297316480 in words is "two hundred ninety-seven million, three hundred sixteen thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 320 640 464557 929114 1858228 2322785 3716456 4645570 7432912 9291140 14865824 18582280 29731648 37164560 59463296 74329120 148658240 297316480