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80030251100 = 22524734494937
BaseRepresentation
bin100101010001000101…
…1001011100001011100
321122120110000222201002
41022202023023201130
52302400221013400
6100433154005432
75532136624142
oct1124213134134
9248513028632
1080030251100
1130a38a99198
1213615b76878
137715497187
143c32bb1592
152135e96ed5
hex12a22cb85c

80030251100 has 72 divisors (see below), whose sum is σ = 177448017600. Its totient is φ = 31315563520.

The previous prime is 80030251097. The next prime is 80030251109. The reversal of 80030251100 is 115203008.

It is a super-2 number, since 2×800302511002 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80030251109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16207832 + ... + 16212768.

It is an arithmetic number, because the mean of its divisors is an integer number (2464555800).

Almost surely, 280030251100 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 80030251100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88724008800).

80030251100 is an abundant number, since it is smaller than the sum of its proper divisors (97417766500).

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

80030251100 is a wasteful number, since it uses less digits than its factorization.

80030251100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8447 (or 8440 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 80030251100 its reverse (115203008), we get a palindrome (80145454108).

The spelling of 80030251100 in words is "eighty billion, thirty million, two hundred fifty-one thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 47 50 94 100 188 235 470 940 1175 2350 3449 4700 4937 6898 9874 13796 17245 19748 24685 34490 49370 68980 86225 98740 123425 162103 172450 232039 246850 324206 344900 464078 493700 648412 810515 928156 1160195 1621030 2320390 3242060 4052575 4640780 5800975 8105150 11601950 16210300 17027713 23203900 34055426 68110852 85138565 170277130 340554260 425692825 800302511 851385650 1600605022 1702771300 3201210044 4001512555 8003025110 16006050220 20007562775 40015125550 80030251100