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348077680 = 2454350971
BaseRepresentation
bin10100101111110…
…011111001110000
3220020222011210221
4110233303321300
51203101441210
654312302424
711424416506
oct2457637160
9806864727
10348077680
11169531a05
12986a1a14
1357162232
143432a676
15208591da
hex14bf3e70

348077680 has 20 divisors (see below), whose sum is σ = 809280792. Its totient is φ = 139231040.

The previous prime is 348077621. The next prime is 348077689. The reversal of 348077680 is 86770843.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (348077689) 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 3 ways as a sum of consecutive naturals, for example, 2175406 + ... + 2175565.

Almost surely, 2348077680 is an apocalyptic number.

It is an amenable number.

348077680 is an abundant number, since it is smaller than the sum of its proper divisors (461203112).

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

348077680 is a wasteful number, since it uses less digits than its factorization.

348077680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4350984 (or 4350978 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 348077680 is about 18656.8400325457. The cubic root of 348077680 is about 703.4372978595.

The spelling of 348077680 in words is "three hundred forty-eight million, seventy-seven thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 4350971 8701942 17403884 21754855 34807768 43509710 69615536 87019420 174038840 348077680