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17970090 = 235599003
BaseRepresentation
bin100010010001…
…1001110101010
31020210222022220
41010203032222
514100020330
61441054510
7305512635
oct104431652
936728286
1017970090
11a164216
126027436
1339524b8
14255ac1c
15189e710
hex11233aa

17970090 has 16 divisors (see below), whose sum is σ = 43128288. Its totient is φ = 4792016.

The previous prime is 17970083. The next prime is 17970097. The reversal of 17970090 is 9007971.

It is an interprime number because it is at equal distance from previous prime (17970083) and next prime (17970097).

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (17970097) 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, 299472 + ... + 299531.

It is an arithmetic number, because the mean of its divisors is an integer number (2695518).

Almost surely, 217970090 is an apocalyptic number.

17970090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

17970090 is an abundant number, since it is smaller than the sum of its proper divisors (25158198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

17970090 is a wasteful number, since it uses less digits than its factorization.

17970090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599013.

The product of its (nonzero) digits is 3969, while the sum is 33.

The square root of 17970090 is about 4239.1142942837. The cubic root of 17970090 is about 261.9288989902.

The spelling of 17970090 in words is "seventeen million, nine hundred seventy thousand, ninety".

Divisors: 1 2 3 5 6 10 15 30 599003 1198006 1797009 2995015 3594018 5990030 8985045 17970090