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70992660 = 22351183211
BaseRepresentation
bin1000011101101…
…00001100010100
311221120210121210
410032310030110
5121133231120
611013341420
71521266454
oct416641424
9157523553
1070992660
1137089922
121b937870
13119285bb
1495ddd64
156374ce0
hex43b4314

70992660 has 24 divisors (see below), whose sum is σ = 198779616. Its totient is φ = 18931360.

The previous prime is 70992643. The next prime is 70992671. The reversal of 70992660 is 6629907.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 591546 + ... + 591665.

It is an arithmetic number, because the mean of its divisors is an integer number (8282484).

Almost surely, 270992660 is an apocalyptic number.

It is an amenable number.

70992660 is an abundant number, since it is smaller than the sum of its proper divisors (127786956).

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

70992660 is a wasteful number, since it uses less digits than its factorization.

70992660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183223 (or 1183221 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 70992660 is about 8425.7142130504. The cubic root of 70992660 is about 414.0675051537.

The spelling of 70992660 in words is "seventy million, nine hundred ninety-two thousand, six hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1183211 2366422 3549633 4732844 5916055 7099266 11832110 14198532 17748165 23664220 35496330 70992660