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80389152 = 2533195983
BaseRepresentation
bin1001100101010…
…10010000100000
312121021012012000
410302222100200
5131034423102
611551004000
71664203464
oct462522040
9177235160
1080389152
1141417618
1222b09600
131386855c
14a9684a4
1570ce01c
hex4caa420

80389152 has 192 divisors, whose sum is σ = 254016000. Its totient is φ = 24655104.

The previous prime is 80389139. The next prime is 80389187. The reversal of 80389152 is 25198308.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 968503 + ... + 968585.

It is an arithmetic number, because the mean of its divisors is an integer number (1323000).

Almost surely, 280389152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80389152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127008000).

80389152 is an abundant number, since it is smaller than the sum of its proper divisors (173626848).

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

80389152 is a wasteful number, since it uses less digits than its factorization.

80389152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 80389152 is about 8965.9997769351. Note that the first 3 decimals coincide. The cubic root of 80389152 is about 431.5844769969.

The spelling of 80389152 in words is "eighty million, three hundred eighty-nine thousand, one hundred fifty-two".