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70238875 = 53780273
BaseRepresentation
bin1000010111111…
…00001010011011
311220011111121211
410023330022123
5120440121000
610545243551
71512010030
oct413741233
9156144554
1070238875
1136714563
121b6335b7
1311723485
149485387
1562767ba
hex42fc29b

70238875 has 16 divisors (see below), whose sum is σ = 100181952. Its totient is φ = 48163200.

The previous prime is 70238873. The next prime is 70238887. The reversal of 70238875 is 57883207.

It is not a de Polignac number, because 70238875 - 21 = 70238873 is a prime.

It is a super-2 number, since 2×702388752 = 9866999122531250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70238873) 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, 39262 + ... + 41011.

It is an arithmetic number, because the mean of its divisors is an integer number (6261372).

Almost surely, 270238875 is an apocalyptic number.

70238875 is a deficient number, since it is larger than the sum of its proper divisors (29943077).

70238875 is an equidigital number, since it uses as much as digits as its factorization.

70238875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80295 (or 80285 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 70238875 is about 8380.8636189834. The cubic root of 70238875 is about 412.5967939367.

The spelling of 70238875 in words is "seventy million, two hundred thirty-eight thousand, eight hundred seventy-five".

Divisors: 1 5 7 25 35 125 175 875 80273 401365 561911 2006825 2809555 10034125 14047775 70238875