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70838943 = 373373283
BaseRepresentation
bin1000011100011…
…10101010011111
311221021222202120
410032032222133
5121113321233
611010154023
71520056350
oct416165237
9157258676
1070838943
1136a9438a
121b882913
13118a3646
14959dd27
1563444b3
hex438ea9f

70838943 has 8 divisors (see below), whose sum is σ = 107945088. Its totient is φ = 40479384.

The previous prime is 70838941. The next prime is 70838951. The reversal of 70838943 is 34983807.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 70838943 - 21 = 70838941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70838895 and 70838904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70838941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1686621 + ... + 1686662.

It is an arithmetic number, because the mean of its divisors is an integer number (13493136).

Almost surely, 270838943 is an apocalyptic number.

70838943 is a deficient number, since it is larger than the sum of its proper divisors (37106145).

70838943 is a wasteful number, since it uses less digits than its factorization.

70838943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3373293.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 70838943 is about 8416.5873725638. The cubic root of 70838943 is about 413.7684356964.

The spelling of 70838943 in words is "seventy million, eight hundred thirty-eight thousand, nine hundred forty-three".

Divisors: 1 3 7 21 3373283 10119849 23612981 70838943