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348072680 = 23513962603
BaseRepresentation
bin10100101111110…
…010101011101000
3220020221220221202
4110233302223220
51203101311210
654312223332
711424366104
oct2457625350
9806856852
10348072680
1116952917a
129869ab48
135715cb87
1434328904
15208579a5
hex14bf2ae8

348072680 has 32 divisors (see below), whose sum is σ = 788810400. Its totient is φ = 138225216.

The previous prime is 348072661. The next prime is 348072689. The reversal of 348072680 is 86270843.

It is not an unprimeable number, because it can be changed into a prime (348072689) 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, 25742 + ... + 36861.

It is an arithmetic number, because the mean of its divisors is an integer number (24650325).

Almost surely, 2348072680 is an apocalyptic number.

It is an amenable number.

348072680 is an abundant number, since it is smaller than the sum of its proper divisors (440737720).

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

348072680 is a wasteful number, since it uses less digits than its factorization.

348072680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62753 (or 62749 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 348072680 is about 18656.7060329523. The cubic root of 348072680 is about 703.4339296426.

The spelling of 348072680 in words is "three hundred forty-eight million, seventy-two thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 139 278 556 695 1112 1390 2780 5560 62603 125206 250412 313015 500824 626030 1252060 2504120 8701817 17403634 34807268 43509085 69614536 87018170 174036340 348072680