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69034816 = 264126309
BaseRepresentation
bin1000001110101…
…10001101000000
311210220022222001
410013112031000
5120133103231
610503353344
71465533454
oct407261500
9153808861
1069034816
1135a71974
121b152854
13113c1406
149250664
1560d9b61
hex41d6340

69034816 has 28 divisors (see below), whose sum is σ = 140337540. Its totient is φ = 33674240.

The previous prime is 69034781. The next prime is 69034817. The reversal of 69034816 is 61843096.

It can be written as a sum of positive squares in 2 ways, for example, as 4393216 + 64641600 = 2096^2 + 8040^2 .

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69034817) 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, 10531 + ... + 15778.

It is an arithmetic number, because the mean of its divisors is an integer number (5012055).

Almost surely, 269034816 is an apocalyptic number.

It is an amenable number.

69034816 is an abundant number, since it is smaller than the sum of its proper divisors (71302724).

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

69034816 is a wasteful number, since it uses less digits than its factorization.

69034816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26362 (or 26352 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 69034816 is about 8308.7192755563. The cubic root of 69034816 is about 410.2255669355.

The spelling of 69034816 in words is "sixty-nine million, thirty-four thousand, eight hundred sixteen".

Divisors: 1 2 4 8 16 32 41 64 82 164 328 656 1312 2624 26309 52618 105236 210472 420944 841888 1078669 1683776 2157338 4314676 8629352 17258704 34517408 69034816