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8141990 = 25814199
BaseRepresentation
bin11111000011110010100110
3120022122201012
4133003302212
54041020430
6450302222
7126130403
oct37036246
916278635
108141990
11466121a
122887972
1318c0c5c
14111d2aa
15aac695
hex7c3ca6

8141990 has 8 divisors (see below), whose sum is σ = 14655600. Its totient is φ = 3256792.

The previous prime is 8141981. The next prime is 8141993. The reversal of 8141990 is 991418.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8141993) by changing a digit.

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, 407090 + ... + 407109.

It is an arithmetic number, because the mean of its divisors is an integer number (1831950).

Almost surely, 28141990 is an apocalyptic number.

8141990 is a deficient number, since it is larger than the sum of its proper divisors (6513610).

8141990 is a wasteful number, since it uses less digits than its factorization.

8141990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814206.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 8141990 is about 2853.4172495448. The cubic root of 8141990 is about 201.1763178178.

The spelling of 8141990 in words is "eight million, one hundred forty-one thousand, nine hundred ninety".

Divisors: 1 2 5 10 814199 1628398 4070995 8141990