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216092672 = 21252757
BaseRepresentation
bin11001110000101…
…01000000000000
3120001121122102022
430320111000000
5420304431142
633235341012
75232520535
oct1470250000
9501548368
10216092672
11100a84694
1260451768
1335a000b3
14209b0d8c
1513e876d2
hexce15000

216092672 has 26 divisors (see below), whose sum is σ = 432140778. Its totient is φ = 108044288.

The previous prime is 216092671. The next prime is 216092693. The reversal of 216092672 is 276290612.

It can be written as a sum of positive squares in only one way, i.e., 209207296 + 6885376 = 14464^2 + 2624^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216092671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22283 + ... + 30474.

Almost surely, 2216092672 is an apocalyptic number.

It is an amenable number.

216092672 is a deficient number, since it is larger than the sum of its proper divisors (216048106).

216092672 is an frugal number, since it uses more digits than its factorization.

216092672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52781 (or 52759 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 216092672 is about 14700.0908840728. The cubic root of 216092672 is about 600.0857951388.

The spelling of 216092672 in words is "two hundred sixteen million, ninety-two thousand, six hundred seventy-two".

Divisors: 1 2 4 8 16 32 64 128 256 512 1024 2048 4096 52757 105514 211028 422056 844112 1688224 3376448 6752896 13505792 27011584 54023168 108046336 216092672