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69880074 = 23114324623
BaseRepresentation
bin1000010101001…
…00100100001010
311212111021102220
410022210210022
5120342130244
610533434510
71505653665
oct412444412
9155437386
1069880074
1136499a30
121b49ba36
1311629074
1493d06dc
156205319
hex42a490a

69880074 has 32 divisors (see below), whose sum is σ = 156017664. Its totient is φ = 20682480.

The previous prime is 69880051. The next prime is 69880079. The reversal of 69880074 is 47008896.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (69880079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9474 + ... + 15149.

It is an arithmetic number, because the mean of its divisors is an integer number (4875552).

Almost surely, 269880074 is an apocalyptic number.

69880074 is an abundant number, since it is smaller than the sum of its proper divisors (86137590).

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

69880074 is a wasteful number, since it uses less digits than its factorization.

69880074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24682.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 69880074 is about 8359.4302437427. The cubic root of 69880074 is about 411.8930386552.

The spelling of 69880074 in words is "sixty-nine million, eight hundred eighty thousand, seventy-four".

Divisors: 1 2 3 6 11 22 33 43 66 86 129 258 473 946 1419 2838 24623 49246 73869 147738 270853 541706 812559 1058789 1625118 2117578 3176367 6352734 11646679 23293358 34940037 69880074