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69889008 = 2437208003
BaseRepresentation
bin1000010101001…
…10101111110000
311212111201200210
410022212233300
5120342422013
610533544120
71506022020
oct412465760
9155451623
1069889008
11364a5712
121b4a5040
1311630157
1493d3a80
156207cc3
hex42a6bf0

69889008 has 40 divisors (see below), whose sum is σ = 206339968. Its totient is φ = 19968192.

The previous prime is 69888979. The next prime is 69889037. The reversal of 69889008 is 80098896.

It is an interprime number because it is at equal distance from previous prime (69888979) and next prime (69889037).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103666 + ... + 104337.

Almost surely, 269889008 is an apocalyptic number.

It is an amenable number.

69889008 is an abundant number, since it is smaller than the sum of its proper divisors (136450960).

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

69889008 is a wasteful number, since it uses less digits than its factorization.

69889008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208021 (or 208015 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 48.

The square root of 69889008 is about 8359.9645932265. The cubic root of 69889008 is about 411.9105910866.

The spelling of 69889008 in words is "sixty-nine million, eight hundred eighty-nine thousand, eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 168 336 208003 416006 624009 832012 1248018 1456021 1664024 2496036 2912042 3328048 4368063 4992072 5824084 8736126 9984144 11648168 17472252 23296336 34944504 69889008