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17970070 = 256726821
BaseRepresentation
bin100010010001…
…1001110010110
31020210222022011
41010203032112
514100020240
61441054434
7305512606
oct104431626
936728264
1017970070
11a1641a8
12602741a
1339524a1
14255ac06
15189e6ea
hex1123396

17970070 has 16 divisors (see below), whose sum is σ = 32830128. Its totient is φ = 7080480.

The previous prime is 17970047. The next prime is 17970077. The reversal of 17970070 is 7007971.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17970077) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 12741 + ... + 14080.

It is an arithmetic number, because the mean of its divisors is an integer number (2051883).

Almost surely, 217970070 is an apocalyptic number.

17970070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

17970070 is a deficient number, since it is larger than the sum of its proper divisors (14860058).

17970070 is a wasteful number, since it uses less digits than its factorization.

17970070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26895.

The product of its (nonzero) digits is 3087, while the sum is 31.

The square root of 17970070 is about 4239.1119352997. Note that the first 3 decimals coincide. The cubic root of 17970070 is about 261.9288018180.

The spelling of 17970070 in words is "seventeen million, nine hundred seventy thousand, seventy".

Divisors: 1 2 5 10 67 134 335 670 26821 53642 134105 268210 1797007 3594014 8985035 17970070