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69000228 = 2233112412
BaseRepresentation
bin1000001110011…
…01110000100100
311210211120112000
410013031300210
5120131001403
610502525300
71465330563
oct407156044
9153746460
1069000228
1135a48990
121b136830
13113ab74b
149241bda
1560ce7a3
hex41cdc24

69000228 has 72 divisors (see below), whose sum is σ = 195965280. Its totient is φ = 20822400.

The previous prime is 69000179. The next prime is 69000233. The reversal of 69000228 is 82200096.

It is a super-2 number, since 2×690002282 = 9522062928103968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 286188 + ... + 286428.

It is an arithmetic number, because the mean of its divisors is an integer number (2721740).

Almost surely, 269000228 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 69000228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97982640).

69000228 is an abundant number, since it is smaller than the sum of its proper divisors (126965052).

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

69000228 is a wasteful number, since it uses less digits than its factorization.

69000228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 69000228 is about 8306.6375868940. The cubic root of 69000228 is about 410.1570447364.

The spelling of 69000228 in words is "sixty-nine million, two hundred twenty-eight", and thus it is an aban number.

Divisors: 1 2 3 4 6 9 11 12 18 22 27 33 36 44 54 66 99 108 132 198 241 297 396 482 594 723 964 1188 1446 2169 2651 2892 4338 5302 6507 7953 8676 10604 13014 15906 23859 26028 31812 47718 58081 71577 95436 116162 143154 174243 232324 286308 348486 522729 638891 696972 1045458 1277782 1568187 1916673 2090916 2555564 3136374 3833346 5750019 6272748 7666692 11500038 17250057 23000076 34500114 69000228