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80225921 = 1491912819
BaseRepresentation
bin1001100100000…
…10011010000001
312120221220021102
410302002122001
5131014212141
611543304145
71662623546
oct462023201
9176856242
1080225921
1141315a16
1222a4b055
131380c179
14a924bcd
15709a99b
hex4c82681

80225921 has 8 divisors (see below), whose sum is σ = 81216000. Its totient is φ = 79242160.

The previous prime is 80225911. The next prime is 80225927. The reversal of 80225921 is 12952208.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-80225921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80225927) 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, 27050 + ... + 29868.

It is an arithmetic number, because the mean of its divisors is an integer number (10152000).

Almost surely, 280225921 is an apocalyptic number.

It is an amenable number.

80225921 is a deficient number, since it is larger than the sum of its proper divisors (990079).

80225921 is a wasteful number, since it uses less digits than its factorization.

80225921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3159.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 80225921 is about 8956.8923740324. The cubic root of 80225921 is about 431.2921668214.

The spelling of 80225921 in words is "eighty million, two hundred twenty-five thousand, nine hundred twenty-one".

Divisors: 1 149 191 2819 28459 420031 538429 80225921