Search a number
-
+
190234481 = 1512335407
BaseRepresentation
bin10110101011010…
…11111101110001
3111020221220122112
423111223331301
5342200000411
630513215105
74466652323
oct1325537561
9436856575
10190234481
1198422a88
1253861495
13305483a8
141b39d613
1511a7ab8b
hexb56bf71

190234481 has 8 divisors (see below), whose sum is σ = 192351744. Its totient is φ = 188128800.

The previous prime is 190234477. The next prime is 190234531. The reversal of 190234481 is 184432091.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 190234481 - 22 = 190234477 is a prime.

It is a super-2 number, since 2×1902344812 = 72378315522678722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190234381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32480 + ... + 37886.

It is an arithmetic number, because the mean of its divisors is an integer number (24043968).

Almost surely, 2190234481 is an apocalyptic number.

It is an amenable number.

190234481 is a deficient number, since it is larger than the sum of its proper divisors (2117263).

190234481 is a wasteful number, since it uses less digits than its factorization.

190234481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5791.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 190234481 is about 13792.5516493505. The cubic root of 190234481 is about 575.1261031552.

The spelling of 190234481 in words is "one hundred ninety million, two hundred thirty-four thousand, four hundred eighty-one".

Divisors: 1 151 233 5407 35183 816457 1259831 190234481