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169830970 = 2516983097
BaseRepresentation
bin10100001111101…
…10101000111010
3102211120022021221
422013312220322
5321434042340
624504022254
74131353011
oct1207665072
9384508257
10169830970
1187957581
1248a6198a
13292533ca
14187aba78
15ed9a44a
hexa1f6a3a

169830970 has 8 divisors (see below), whose sum is σ = 305695764. Its totient is φ = 67932384.

The previous prime is 169830953. The next prime is 169831001. The reversal of 169830970 is 79038961.

It can be written as a sum of positive squares in 2 ways, for example, as 165714129 + 4116841 = 12873^2 + 2029^2 .

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

It is a super-2 number, since 2×1698309702 = 57685116742281800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8491539 + ... + 8491558.

Almost surely, 2169830970 is an apocalyptic number.

169830970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

169830970 is a deficient number, since it is larger than the sum of its proper divisors (135864794).

169830970 is a wasteful number, since it uses less digits than its factorization.

169830970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16983104.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 169830970 is about 13031.9211937458. The cubic root of 169830970 is about 553.7821631365.

The spelling of 169830970 in words is "one hundred sixty-nine million, eight hundred thirty thousand, nine hundred seventy".

Divisors: 1 2 5 10 16983097 33966194 84915485 169830970