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70002160 = 245875027
BaseRepresentation
bin1000010110000…
…10010111110000
311212201110220121
410023002113300
5120410032120
610540220024
71510002634
oct413022760
9155643817
1070002160
1136572728
121b53a614
131166c7c7
149422dc4
15622b5aa
hex42c25f0

70002160 has 20 divisors (see below), whose sum is σ = 162755208. Its totient is φ = 28000832.

The previous prime is 70002157. The next prime is 70002167. The reversal of 70002160 is 6120007.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70002167) by changing a digit.

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, 437434 + ... + 437593.

Almost surely, 270002160 is an apocalyptic number.

It is an amenable number.

70002160 is an abundant number, since it is smaller than the sum of its proper divisors (92753048).

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

70002160 is a wasteful number, since it uses less digits than its factorization.

70002160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875040 (or 875034 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 70002160 is about 8366.7293490348. The cubic root of 70002160 is about 412.1327689736.

Adding to 70002160 its reverse (6120007), we get a palindrome (76122167).

The spelling of 70002160 in words is "seventy million, two thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 40 80 875027 1750054 3500108 4375135 7000216 8750270 14000432 17500540 35001080 70002160