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70070752 = 257130841
BaseRepresentation
bin1000010110100…
…11000111100000
311212211222000001
410023103013200
5120414231002
610541505344
71510406623
oct413230740
9155758001
1070070752
113660a214
121b572254
1311694aab
14943ddba
156241a87
hex42d31e0

70070752 has 24 divisors (see below), whose sum is σ = 139899312. Its totient is φ = 34540800.

The previous prime is 70070743. The next prime is 70070771. The reversal of 70070752 is 25707007.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 70070752.

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 3 ways as a sum of consecutive naturals, for example, 13149 + ... + 17692.

It is an arithmetic number, because the mean of its divisors is an integer number (5829138).

Almost surely, 270070752 is an apocalyptic number.

It is an amenable number.

70070752 is a deficient number, since it is larger than the sum of its proper divisors (69828560).

70070752 is a wasteful number, since it uses less digits than its factorization.

70070752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30922 (or 30914 counting only the distinct ones).

The product of its (nonzero) digits is 3430, while the sum is 28.

The square root of 70070752 is about 8370.8274381927. The cubic root of 70070752 is about 412.2673352152.

Adding to 70070752 its reverse (25707007), we get a palindrome (95777759).

The spelling of 70070752 in words is "seventy million, seventy thousand, seven hundred fifty-two".

Divisors: 1 2 4 8 16 32 71 142 284 568 1136 2272 30841 61682 123364 246728 493456 986912 2189711 4379422 8758844 17517688 35035376 70070752