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32970820 = 2251796973
BaseRepresentation
bin111110111000…
…1100001000100
32022001002110111
41331301201010
531420031240
63134402404
7550150561
oct175614104
968032414
1032970820
111767a513
12b060404
136aa527c
144543868
152d641ea
hex1f71844

32970820 has 24 divisors (see below), whose sum is σ = 73312344. Its totient is φ = 12412416.

The previous prime is 32970781. The next prime is 32970827. The reversal of 32970820 is 2807923.

It can be written as a sum of positive squares in 4 ways, for example, as 799236 + 32171584 = 894^2 + 5672^2 .

It is not an unprimeable number, because it can be changed into a prime (32970827) 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, 48147 + ... + 48826.

It is an arithmetic number, because the mean of its divisors is an integer number (3054681).

Almost surely, 232970820 is an apocalyptic number.

It is an amenable number.

32970820 is an abundant number, since it is smaller than the sum of its proper divisors (40341524).

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

32970820 is a wasteful number, since it uses less digits than its factorization.

32970820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96999 (or 96997 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 32970820 is about 5742.0222918411. The cubic root of 32970820 is about 320.6588638557.

The spelling of 32970820 in words is "thirty-two million, nine hundred seventy thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 96973 193946 387892 484865 969730 1648541 1939460 3297082 6594164 8242705 16485410 32970820