Search a number
-
+
493758690 = 23579208337
BaseRepresentation
bin11101011011100…
…010100011100010
31021102002112120220
4131123202203202
52002400234230
6120554543510
715143610465
oct3533424342
91242075526
10493758690
11233794237
12119437b96
137b3ab309
144980d2dc
152d533d10
hex1d6e28e2

493758690 has 32 divisors (see below), whose sum is σ = 1200026880. Its totient is φ = 130001664.

The previous prime is 493758679. The next prime is 493758703. The reversal of 493758690 is 96857394.

It is a super-2 number, since 2×4937586902 = 487595287901032200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101799 + ... + 106538.

It is an arithmetic number, because the mean of its divisors is an integer number (37500840).

Almost surely, 2493758690 is an apocalyptic number.

493758690 is an abundant number, since it is smaller than the sum of its proper divisors (706268190).

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

493758690 is a wasteful number, since it uses less digits than its factorization.

493758690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208426.

The product of its (nonzero) digits is 1632960, while the sum is 51.

The square root of 493758690 is about 22220.6815827058. The cubic root of 493758690 is about 790.3842013064.

The spelling of 493758690 in words is "four hundred ninety-three million, seven hundred fifty-eight thousand, six hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 79 158 237 395 474 790 1185 2370 208337 416674 625011 1041685 1250022 2083370 3125055 6250110 16458623 32917246 49375869 82293115 98751738 164586230 246879345 493758690