Search a number
-
+
30859948900 = 225211215972
BaseRepresentation
bin11100101111011001…
…010111001101100100
32221122200102211111101
4130233121113031210
51001200121331100
622102111445444
72141511144334
oct345731271544
987580384441
1030859948900
11120a6700400
125b92b26884
132baa5a78c1
1416ca73b0c4
15c0939386a
hex72f657364

30859948900 has 81 divisors (see below), whose sum is σ = 73653474027. Its totient is φ = 11214772800.

The previous prime is 30859948897. The next prime is 30859948927. The reversal of 30859948900 is 984995803.

The square root of 30859948900 is 175670.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 6158168676 + 24701780224 = 78474^2 + 157168^2 .

It is a super-2 number, since 2×308599489002 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 19322902 + ... + 19324498.

Almost surely, 230859948900 is an apocalyptic number.

30859948900 is the 175670-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30859948900

30859948900 is an abundant number, since it is smaller than the sum of its proper divisors (42793525127).

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

30859948900 is a wasteful number, since it uses less digits than its factorization.

30859948900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3230 (or 1615 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 55.

The spelling of 30859948900 in words is "thirty billion, eight hundred fifty-nine million, nine hundred forty-eight thousand, nine hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 121 220 242 275 484 550 605 1100 1210 1597 2420 3025 3194 6050 6388 7985 12100 15970 17567 31940 35134 39925 70268 79850 87835 159700 175670 193237 351340 386474 439175 772948 878350 966185 1756700 1932370 2550409 3864740 4830925 5100818 9661850 10201636 12752045 19323700 25504090 28054499 51008180 56108998 63760225 112217996 127520450 140272495 255040900 280544990 308599489 561089980 617198978 701362475 1234397956 1402724950 1542997445 2805449900 3085994890 6171989780 7714987225 15429974450 30859948900