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83925870030 = 23253133789261
BaseRepresentation
bin100111000101001011…
…1110010010111001110
322000121221022221020200
41032022113302113032
52333340010320110
6102315514354330
76030522060552
oct1161227622716
9260557287220
1083925870030
1132657a69372
121432272b9a6
137bb659cc32
1440c2313862
1522b2e9e6c0
hex138a5f25ce

83925870030 has 96 divisors (see below), whose sum is σ = 225917123328. Its totient is φ = 21593779200.

The previous prime is 83925870019. The next prime is 83925870037. The reversal of 83925870030 is 3007852938.

83925870030 is a `hidden beast` number, since 8 + 39 + 2 + 587 + 0 + 0 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83925870037) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 895600 + ... + 984860.

It is an arithmetic number, because the mean of its divisors is an integer number (2353303368).

Almost surely, 283925870030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83925870030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112958561664).

83925870030 is an abundant number, since it is smaller than the sum of its proper divisors (141991253298).

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

83925870030 is a wasteful number, since it uses less digits than its factorization.

83925870030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89642 (or 89639 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 83925870030 in words is "eighty-three billion, nine hundred twenty-five million, eight hundred seventy thousand, thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 31 45 62 90 93 155 186 279 310 337 465 558 674 930 1011 1395 1685 2022 2790 3033 3370 5055 6066 10110 10447 15165 20894 30330 31341 52235 62682 89261 94023 104470 156705 178522 188046 267783 313410 446305 470115 535566 803349 892610 940230 1338915 1606698 2677830 2767091 4016745 5534182 8033490 8301273 13835455 16602546 24903819 27670910 30080957 41506365 49807638 60161914 83012730 90242871 124519095 150404785 180485742 249038190 270728613 300809570 451214355 541457226 902428710 932509667 1353643065 1865019334 2707286130 2797529001 4662548335 5595058002 8392587003 9325096670 13987645005 16785174006 27975290010 41962935015 83925870030