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70120470 = 2357247701
BaseRepresentation
bin1000010110111…
…11010000010110
311212221111012110
410023133100112
5120422323340
610542531450
71511004600
oct413372026
9155844173
1070120470
1136643602
121b596b86
13116b1604
149454170
156251680
hex42df416

70120470 has 48 divisors (see below), whose sum is σ = 195769008. Its totient is φ = 16027200.

The previous prime is 70120433. The next prime is 70120511. The reversal of 70120470 is 7402107.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22381 + ... + 25320.

It is an arithmetic number, because the mean of its divisors is an integer number (4078521).

Almost surely, 270120470 is an apocalyptic number.

70120470 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

70120470 is an abundant number, since it is smaller than the sum of its proper divisors (125648538).

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

70120470 is a wasteful number, since it uses less digits than its factorization.

70120470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47725 (or 47718 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 70120470 is about 8373.7966299642. The cubic root of 70120470 is about 412.3648188816.

Adding to 70120470 its reverse (7402107), we get a palindrome (77522577).

The spelling of 70120470 in words is "seventy million, one hundred twenty thousand, four hundred seventy".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 49 70 98 105 147 210 245 294 490 735 1470 47701 95402 143103 238505 286206 333907 477010 667814 715515 1001721 1431030 1669535 2003442 2337349 3339070 4674698 5008605 7012047 10017210 11686745 14024094 23373490 35060235 70120470