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190130953 = 239795527
BaseRepresentation
bin10110101010100…
…10101100001001
3111020202122122011
423111102230021
5342133142303
630511055521
74466041435
oct1325225411
9436678564
10190130953
1198362221
12538115a1
133051022c
141b3739c5
1511a5a16d
hexb552b09

190130953 has 4 divisors (see below), whose sum is σ = 190926720. Its totient is φ = 189335188.

The previous prime is 190130951. The next prime is 190130957. The reversal of 190130953 is 359031091.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 190130953 - 21 = 190130951 is a prime.

It is a super-2 number, since 2×1901309532 = 72299558577376418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190130951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 397525 + ... + 398002.

It is an arithmetic number, because the mean of its divisors is an integer number (47731680).

Almost surely, 2190130953 is an apocalyptic number.

It is an amenable number.

190130953 is a deficient number, since it is larger than the sum of its proper divisors (795767).

190130953 is an equidigital number, since it uses as much as digits as its factorization.

190130953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795766.

The product of its (nonzero) digits is 3645, while the sum is 31.

The square root of 190130953 is about 13788.7980984566. The cubic root of 190130953 is about 575.0217539344.

The spelling of 190130953 in words is "one hundred ninety million, one hundred thirty thousand, nine hundred fifty-three".

Divisors: 1 239 795527 190130953