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70752235 = 514150447
BaseRepresentation
bin1000011011110…
…01011111101011
311221010120211011
410031321133223
5121103032420
611004244351
71516245511
oct415713753
9157116734
1070752235
1136a35224
121b8406b7
1311873038
14957a4b1
15632895a
hex43797eb

70752235 has 4 divisors (see below), whose sum is σ = 84902688. Its totient is φ = 56601784.

The previous prime is 70752221. The next prime is 70752239. The reversal of 70752235 is 53225707.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53225707 = 192801353.

It is a cyclic number.

It is not a de Polignac number, because 70752235 - 211 = 70750187 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70752197 and 70752206.

It is not an unprimeable number, because it can be changed into a prime (70752239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7075219 + ... + 7075228.

It is an arithmetic number, because the mean of its divisors is an integer number (21225672).

Almost surely, 270752235 is an apocalyptic number.

70752235 is a deficient number, since it is larger than the sum of its proper divisors (14150453).

70752235 is a wasteful number, since it uses less digits than its factorization.

70752235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14150452.

The product of its (nonzero) digits is 14700, while the sum is 31.

The square root of 70752235 is about 8411.4347765408. The cubic root of 70752235 is about 413.5995470410.

The spelling of 70752235 in words is "seventy million, seven hundred fifty-two thousand, two hundred thirty-five".

Divisors: 1 5 14150447 70752235