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80088661 = 432397793
BaseRepresentation
bin1001100011000…
…00111001010101
312120200220222201
410301200321111
5131000314121
611540324501
71661512432
oct461407125
9176626881
1080088661
1141231884
12229a3731
1313791853
14a8cab89
15706ee91
hex4c60e55

80088661 has 8 divisors (see below), whose sum is σ = 82304640. Its totient is φ = 77888832.

The previous prime is 80088647. The next prime is 80088677. The reversal of 80088661 is 16688008.

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

It is a cyclic number.

It is not a de Polignac number, because 80088661 - 29 = 80088149 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80088661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80088601) 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, 6381 + ... + 14173.

It is an arithmetic number, because the mean of its divisors is an integer number (10288080).

Almost surely, 280088661 is an apocalyptic number.

It is an amenable number.

80088661 is a deficient number, since it is larger than the sum of its proper divisors (2215979).

80088661 is a wasteful number, since it uses less digits than its factorization.

80088661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8075.

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 80088661 is about 8949.2268381129. The cubic root of 80088661 is about 431.0460578504.

The spelling of 80088661 in words is "eighty million, eighty-eight thousand, six hundred sixty-one".

Divisors: 1 43 239 7793 10277 335099 1862527 80088661