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6616652890 = 25661665289
BaseRepresentation
bin1100010100110001…
…00001110001011010
3122002010101210102011
412022120201301122
5102022330343030
63012321500134
7322652423131
oct61230416132
918063353364
106616652890
112895a23281
121347aa164a
13815a75433
1446aa8c918
1528ad44b2a
hex18a621c5a

6616652890 has 8 divisors (see below), whose sum is σ = 11909975220. Its totient is φ = 2646661152.

The previous prime is 6616652879. The next prime is 6616652897. The reversal of 6616652890 is 982566166.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6612454489 + 4198401 = 81317^2 + 2049^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (6616652897) 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, 330832635 + ... + 330832654.

Almost surely, 26616652890 is an apocalyptic number.

6616652890 is a deficient number, since it is larger than the sum of its proper divisors (5293322330).

6616652890 is a wasteful number, since it uses less digits than its factorization.

6616652890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661665296.

The product of its (nonzero) digits is 933120, while the sum is 49.

The square root of 6616652890 is about 81342.8109300386. The cubic root of 6616652890 is about 1877.3537624508.

The spelling of 6616652890 in words is "six billion, six hundred sixteen million, six hundred fifty-two thousand, eight hundred ninety".

Divisors: 1 2 5 10 661665289 1323330578 3308326445 6616652890