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190230518 = 295115259
BaseRepresentation
bin10110101011010…
…10111111110110
3111020221201012202
423111222333312
5342144334033
630513144502
74466634632
oct1325527766
9436851182
10190230518
1198420005
125385b132
133054664a
141b39bdc2
1511a798e8
hexb56aff6

190230518 has 4 divisors (see below), whose sum is σ = 285345780. Its totient is φ = 95115258.

The previous prime is 190230511. The next prime is 190230533. The reversal of 190230518 is 815032091.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 815032091 = 1198767993.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190230511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47557628 + ... + 47557631.

It is an arithmetic number, because the mean of its divisors is an integer number (71336445).

Almost surely, 2190230518 is an apocalyptic number.

190230518 is a deficient number, since it is larger than the sum of its proper divisors (95115262).

190230518 is an equidigital number, since it uses as much as digits as its factorization.

190230518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95115261.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 190230518 is about 13792.4079841049. The cubic root of 190230518 is about 575.1221094162.

The spelling of 190230518 in words is "one hundred ninety million, two hundred thirty thousand, five hundred eighteen".

Divisors: 1 2 95115259 190230518