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83125900 = 225211135813
BaseRepresentation
bin1001111010001…
…10011010001100
312210102020022001
410331012122030
5132240012100
612125402044
72026362364
oct475063214
9183366261
1083125900
1142a167a0
1223a09324
13142b6130
14b07b9a4
15746ed6a
hex4f4668c

83125900 has 72 divisors (see below), whose sum is σ = 211955184. Its totient is φ = 27897600.

The previous prime is 83125897. The next prime is 83125921. The reversal of 83125900 is 952138.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11394 + ... + 17206.

It is an arithmetic number, because the mean of its divisors is an integer number (2943822).

Almost surely, 283125900 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 83125900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105977592).

83125900 is an abundant number, since it is smaller than the sum of its proper divisors (128829284).

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

83125900 is a wasteful number, since it uses less digits than its factorization.

83125900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5851 (or 5844 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 83125900 is about 9117.3406210364. The cubic root of 83125900 is about 436.4275118247.

The spelling of 83125900 in words is "eighty-three million, one hundred twenty-five thousand, nine hundred".

Divisors: 1 2 4 5 10 11 13 20 22 25 26 44 50 52 55 65 100 110 130 143 220 260 275 286 325 550 572 650 715 1100 1300 1430 2860 3575 5813 7150 11626 14300 23252 29065 58130 63943 75569 116260 127886 145325 151138 255772 290650 302276 319715 377845 581300 639430 755690 831259 1278860 1511380 1598575 1662518 1889225 3197150 3325036 3778450 4156295 6394300 7556900 8312590 16625180 20781475 41562950 83125900