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6630000078 = 2313389218509
BaseRepresentation
bin1100010110010110…
…11100010111001110
3122010001111220022110
412023023130113032
5102034240000303
63013515524450
7323204033202
oct61313342716
918101456273
106630000078
1128a250a209
121350459726
13818769690
1446c764b02
1528c0ce703
hex18b2dc5ce

6630000078 has 32 divisors (see below), whose sum is σ = 14316775200. Its totient is φ = 2034746496.

The previous prime is 6630000059. The next prime is 6630000103. The reversal of 6630000078 is 8700000366.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78913 + ... + 139596.

It is an arithmetic number, because the mean of its divisors is an integer number (447399225).

Almost surely, 26630000078 is an apocalyptic number.

6630000078 is an abundant number, since it is smaller than the sum of its proper divisors (7686775122).

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

6630000078 is a wasteful number, since it uses less digits than its factorization.

6630000078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218916.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 6630000078 is about 81424.8124222586. The cubic root of 6630000078 is about 1878.6152544365.

The spelling of 6630000078 in words is "six billion, six hundred thirty million, seventy-eight", and thus it is an aban number.

Divisors: 1 2 3 6 13 26 39 78 389 778 1167 2334 5057 10114 15171 30342 218509 437018 655527 1311054 2840617 5681234 8521851 17043702 85000001 170000002 255000003 510000006 1105000013 2210000026 3315000039 6630000078