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70006838 = 2114321721
BaseRepresentation
bin1000010110000…
…11100000110110
311212201201022212
410023003200312
5120410204323
610540253422
71510022366
oct413034066
9155651285
1070006838
11365761a0
121b541272
1311671985
1494249a6
15622cb78
hex42c3836

70006838 has 24 divisors (see below), whose sum is σ = 117350856. Its totient is φ = 31063200.

The previous prime is 70006823. The next prime is 70006883. The reversal of 70006838 is 83860007.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 39818 + ... + 41538.

It is an arithmetic number, because the mean of its divisors is an integer number (4889619).

Almost surely, 270006838 is an apocalyptic number.

70006838 is a deficient number, since it is larger than the sum of its proper divisors (47344018).

70006838 is a wasteful number, since it uses less digits than its factorization.

70006838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1820 (or 1777 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 70006838 is about 8367.0089040230. The cubic root of 70006838 is about 412.1419492339.

The spelling of 70006838 in words is "seventy million, six thousand, eight hundred thirty-eight".

Divisors: 1 2 11 22 43 86 473 946 1721 1849 3442 3698 18931 20339 37862 40678 74003 148006 814033 1628066 3182129 6364258 35003419 70006838