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84808972 = 2225782499
BaseRepresentation
bin1010000111000…
…01010100001100
312220120202001001
411003201110030
5133202341342
612225430044
72046602323
oct503412414
9186522031
1084808972
1143966266
122449b324
1314755231
14b3990ba
1576a38b7
hex50e150c

84808972 has 12 divisors (see below), whose sum is σ = 148995000. Its totient is φ = 42238976.

The previous prime is 84808967. The next prime is 84808979. The reversal of 84808972 is 27980848.

It is not an unprimeable number, because it can be changed into a prime (84808979) 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, 40222 + ... + 42277.

It is an arithmetic number, because the mean of its divisors is an integer number (12416250).

Almost surely, 284808972 is an apocalyptic number.

It is an amenable number.

84808972 is a deficient number, since it is larger than the sum of its proper divisors (64186028).

84808972 is a wasteful number, since it uses less digits than its factorization.

84808972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82760 (or 82758 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 46.

The square root of 84808972 is about 9209.1786821627. The cubic root of 84808972 is about 439.3533407169.

The spelling of 84808972 in words is "eighty-four million, eight hundred eight thousand, nine hundred seventy-two".

Divisors: 1 2 4 257 514 1028 82499 164998 329996 21202243 42404486 84808972