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70088529 = 3719317293
BaseRepresentation
bin1000010110101…
…11011101010001
311212212212101110
410023113131101
5120420313104
610542123533
71510512510
oct413273521
9155785343
1070088529
1136621605
121b5805a9
131169cc04
149446677
156246e89
hex42d7751

70088529 has 16 divisors (see below), whose sum is σ = 107361152. Its totient is φ = 39840768.

The previous prime is 70088483. The next prime is 70088539. The reversal of 70088529 is 92588007.

It is not a de Polignac number, because 70088529 - 212 = 70084433 is a prime.

It is a super-4 number, since 4×700885294 (a number of 32 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70088539) 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, 4594 + ... + 12699.

It is an arithmetic number, because the mean of its divisors is an integer number (6710072).

Almost surely, 270088529 is an apocalyptic number.

It is an amenable number.

70088529 is a deficient number, since it is larger than the sum of its proper divisors (37272623).

70088529 is a wasteful number, since it uses less digits than its factorization.

70088529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17496.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 70088529 is about 8371.8892133138. The cubic root of 70088529 is about 412.3021964401.

The spelling of 70088529 in words is "seventy million, eighty-eight thousand, five hundred twenty-nine".

Divisors: 1 3 7 21 193 579 1351 4053 17293 51879 121051 363153 3337549 10012647 23362843 70088529