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69899050 = 25213532029
BaseRepresentation
bin1000010101010…
…01001100101010
311212112020110201
410022221030222
5120343232200
610534102414
71506063214
oct412511452
9155466421
1069899050
1136502211
121b4aaa0a
13116348b0
1493d75b4
15620ac6a
hex42a932a

69899050 has 48 divisors (see below), whose sum is σ = 142725240. Its totient is φ = 25309440.

The previous prime is 69899041. The next prime is 69899057. The reversal of 69899050 is 5099896.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 17147881 + 52751169 = 4141^2 + 7263^2 .

It is not an unprimeable number, because it can be changed into a prime (69899057) by changing a digit.

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, 33436 + ... + 35464.

Almost surely, 269899050 is an apocalyptic number.

69899050 is an abundant number, since it is smaller than the sum of its proper divisors (72826190).

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

69899050 is a wasteful number, since it uses less digits than its factorization.

69899050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2107 (or 2102 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 46.

The square root of 69899050 is about 8360.5651722835. The cubic root of 69899050 is about 411.9303185953.

The spelling of 69899050 in words is "sixty-nine million, eight hundred ninety-nine thousand, fifty".

Divisors: 1 2 5 10 13 25 26 50 53 65 106 130 265 325 530 650 689 1325 1378 2029 2650 3445 4058 6890 10145 17225 20290 26377 34450 50725 52754 101450 107537 131885 215074 263770 537685 659425 1075370 1318850 1397981 2688425 2795962 5376850 6989905 13979810 34949525 69899050