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348678028 = 22330126407
BaseRepresentation
bin10100110010000…
…110011110001100
3220022002200100001
4110302012132030
51203230144103
654333214044
711432500006
oct2462063614
9808080301
10348678028
11169901a66
1298931324
135731257a
1434445376
152092701d
hex14c8678c

348678028 has 12 divisors (see below), whose sum is σ = 610394512. Its totient is φ = 174279600.

The previous prime is 348678017. The next prime is 348678037. The reversal of 348678028 is 820876843.

348678028 is a nontrivial binomial coefficient, being equal to C(26408, 2).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1 + ... + 26407.

Almost surely, 2348678028 is an apocalyptic number.

348678028 is the 26407-th triangular number and also the 13204-th hexagonal number.

348678028 is the 8803-rd centered nonagonal number.

It is an amenable number.

348678028 is a deficient number, since it is larger than the sum of its proper divisors (261716484).

348678028 is a wasteful number, since it uses less digits than its factorization.

348678028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29712 (or 29710 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 46.

The square root of 348678028 is about 18672.9223208367. The cubic root of 348678028 is about 703.8414840893.

The spelling of 348678028 in words is "three hundred forty-eight million, six hundred seventy-eight thousand, twenty-eight".

Divisors: 1 2 4 3301 6602 13204 26407 52814 105628 87169507 174339014 348678028