Search a number
-
+
238388500 = 2253768111
BaseRepresentation
bin11100011010110…
…00010100010100
3121121120101112201
432031120110110
5442011413000
635353254244
75623161130
oct1615302424
9547511481
10238388500
11112622899
1267a04384
133a5084ac
14239363c0
1515ddd96a
hexe358514

238388500 has 48 divisors (see below), whose sum is σ = 595026432. Its totient is φ = 81732000.

The previous prime is 238388483. The next prime is 238388519. The reversal of 238388500 is 5883832.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 238388500.

It is a congruent number.

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, 30556 + ... + 37555.

It is an arithmetic number, because the mean of its divisors is an integer number (12396384).

Almost surely, 2238388500 is an apocalyptic number.

238388500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

238388500 is an abundant number, since it is smaller than the sum of its proper divisors (356637932).

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

238388500 is a wasteful number, since it uses less digits than its factorization.

238388500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68137 (or 68125 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 238388500 is about 15439.8348436763. The cubic root of 238388500 is about 620.0524582738.

The spelling of 238388500 in words is "two hundred thirty-eight million, three hundred eighty-eight thousand, five hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 50 70 100 125 140 175 250 350 500 700 875 1750 3500 68111 136222 272444 340555 476777 681110 953554 1362220 1702775 1907108 2383885 3405550 4767770 6811100 8513875 9535540 11919425 17027750 23838850 34055500 47677700 59597125 119194250 238388500