Search a number
-
+
61338800 = 2452891723
BaseRepresentation
bin1110100111111…
…1010010110000
311021102100000102
43221333102300
5111200320200
610030411532
71343241215
oct351772260
9137370012
1061338800
1131695826
1218660ba8
13c928463
148209b0c
1555b96d5
hex3a7f4b0

61338800 has 60 divisors (see below), whose sum is σ = 149108760. Its totient is φ = 24245760.

The previous prime is 61338793. The next prime is 61338803. The reversal of 61338800 is 883316.

It is not an unprimeable number, because it can be changed into a prime (61338803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34739 + ... + 36461.

It is an arithmetic number, because the mean of its divisors is an integer number (2485146).

Almost surely, 261338800 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61338800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74554380).

61338800 is an abundant number, since it is smaller than the sum of its proper divisors (87769960).

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

61338800 is a wasteful number, since it uses less digits than its factorization.

61338800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1830 (or 1819 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 61338800 is about 7831.9090903815. The cubic root of 61338800 is about 394.3771629532.

The spelling of 61338800 in words is "sixty-one million, three hundred thirty-eight thousand, eight hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 89 100 178 200 356 400 445 712 890 1424 1723 1780 2225 3446 3560 4450 6892 7120 8615 8900 13784 17230 17800 27568 34460 35600 43075 68920 86150 137840 153347 172300 306694 344600 613388 689200 766735 1226776 1533470 2453552 3066940 3833675 6133880 7667350 12267760 15334700 30669400 61338800