Search a number
-
+
68900800 = 265243063
BaseRepresentation
bin1000001101101…
…01011111000000
311210122112010111
410012311133000
5120114311200
610500441104
71464434653
oct406653700
9153575114
1068900800
1135990211
121b0a9194
1311375407
14921789a
1560b00ba
hex41b57c0

68900800 has 42 divisors (see below), whose sum is σ = 169542968. Its totient is φ = 27559680.

The previous prime is 68900789. The next prime is 68900803. The reversal of 68900800 is 800986.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68900803) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19932 + ... + 23131.

Almost surely, 268900800 is an apocalyptic number.

It is an amenable number.

68900800 is an abundant number, since it is smaller than the sum of its proper divisors (100642168).

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

68900800 is a wasteful number, since it uses less digits than its factorization.

68900800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43085 (or 43070 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 68900800 is about 8300.6505769126. The cubic root of 68900800 is about 409.9599405636.

The spelling of 68900800 in words is "sixty-eight million, nine hundred thousand, eight hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 160 200 320 400 800 1600 43063 86126 172252 215315 344504 430630 689008 861260 1076575 1378016 1722520 2153150 2756032 3445040 4306300 6890080 8612600 13780160 17225200 34450400 68900800