Search a number
-
+
68830400 = 265243019
BaseRepresentation
bin1000001101001…
…00010011000000
311210111221120002
410012210103000
5120110033100
610455135132
71464022502
oct406442300
9153457502
1068830400
1135942331
121b0744a8
131134c362
1491d9d72
1560992d5
hex41a44c0

68830400 has 42 divisors (see below), whose sum is σ = 169369740. Its totient is φ = 27531520.

The previous prime is 68830379. The next prime is 68830439. The reversal of 68830400 is 403886.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19910 + ... + 23109.

Almost surely, 268830400 is an apocalyptic number.

It is an amenable number.

68830400 is an abundant number, since it is smaller than the sum of its proper divisors (100539340).

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

68830400 is a wasteful number, since it uses less digits than its factorization.

68830400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43041 (or 43026 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 68830400 is about 8296.4088616702. The cubic root of 68830400 is about 409.8202662535.

The spelling of 68830400 in words is "sixty-eight million, eight hundred thirty thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 160 200 320 400 800 1600 43019 86038 172076 215095 344152 430190 688304 860380 1075475 1376608 1720760 2150950 2753216 3441520 4301900 6883040 8603800 13766080 17207600 34415200 68830400