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70073803 = 472114843
BaseRepresentation
bin1000010110100…
…11110111001011
311212212010012001
410023103313023
5120414330203
610541531431
71510421542
oct413236713
9155763161
1070073803
1136611538
121b573b77
13116962b7
149441159
15624291d
hex42d3dcb

70073803 has 4 divisors (see below), whose sum is σ = 70093368. Its totient is φ = 70054240.

The previous prime is 70073777. The next prime is 70073821. The reversal of 70073803 is 30837007.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30837007 = 131235397.

It is a cyclic number.

It is not a de Polignac number, because 70073803 - 29 = 70073291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70073833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2701 + ... + 12142.

It is an arithmetic number, because the mean of its divisors is an integer number (17523342).

Almost surely, 270073803 is an apocalyptic number.

70073803 is a deficient number, since it is larger than the sum of its proper divisors (19565).

70073803 is a wasteful number, since it uses less digits than its factorization.

70073803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19564.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 70073803 is about 8371.0096762577. The cubic root of 70073803 is about 412.2733187359.

It can be divided in two parts, 70073 and 803, that added together give a triangular number (70876 = T376).

The spelling of 70073803 in words is "seventy million, seventy-three thousand, eight hundred three".

Divisors: 1 4721 14843 70073803