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70089555 = 3517274861
BaseRepresentation
bin1000010110101…
…11101101010011
311212212220210110
410023113231103
5120420331210
610542132403
71510515504
oct413275523
9155786713
1070089555
1136622358
121b581103
13116a0513
149446bab
156247420
hex42d7b53

70089555 has 16 divisors (see below), whose sum is σ = 118740384. Its totient is φ = 35182080.

The previous prime is 70089473. The next prime is 70089557. The reversal of 70089555 is 55598007.

It is not a de Polignac number, because 70089555 - 212 = 70085459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70089557) 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, 137176 + ... + 137685.

It is an arithmetic number, because the mean of its divisors is an integer number (7421274).

Almost surely, 270089555 is an apocalyptic number.

70089555 is a deficient number, since it is larger than the sum of its proper divisors (48650829).

70089555 is a wasteful number, since it uses less digits than its factorization.

70089555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274886.

The product of its (nonzero) digits is 63000, while the sum is 39.

The square root of 70089555 is about 8371.9504895813. The cubic root of 70089555 is about 412.3042082766.

The spelling of 70089555 in words is "seventy million, eighty-nine thousand, five hundred fifty-five".

Divisors: 1 3 5 15 17 51 85 255 274861 824583 1374305 4122915 4672637 14017911 23363185 70089555