Search a number
-
+
30013331010 = 23513397193847
BaseRepresentation
bin11011111100111011…
…110001011001000010
32212110200101012002020
4123330323301121002
5442431403043020
621442105502310
72111521050525
oct337473613102
985420335066
1030013331010
11118018198a3
1259974a1996
132aa4081b80
14164a118bbc
15ba9dadc40
hex6fcef1642

30013331010 has 64 divisors (see below), whose sum is σ = 77768716032. Its totient is φ = 7369249536.

The previous prime is 30013331009. The next prime is 30013331011. The reversal of 30013331010 is 1013331003.

It is an interprime number because it is at equal distance from previous prime (30013331009) and next prime (30013331011).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30013331011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57907 + ... + 251753.

It is an arithmetic number, because the mean of its divisors is an integer number (1215136188).

Almost surely, 230013331010 is an apocalyptic number.

30013331010 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30013331010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38884358016).

30013331010 is an abundant number, since it is smaller than the sum of its proper divisors (47755385022).

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

30013331010 is a wasteful number, since it uses less digits than its factorization.

30013331010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194267.

The product of its (nonzero) digits is 81, while the sum is 15.

Adding to 30013331010 its reverse (1013331003), we get a palindrome (31026662013).

The spelling of 30013331010 in words is "thirty billion, thirteen million, three hundred thirty-one thousand, ten".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 397 794 1191 1985 2382 3970 5161 5955 10322 11910 15483 25805 30966 51610 77415 154830 193847 387694 581541 969235 1163082 1938470 2520011 2907705 5040022 5815410 7560033 12600055 15120066 25200110 37800165 75600330 76957259 153914518 230871777 384786295 461743554 769572590 1000444367 1154358885 2000888734 2308717770 3001333101 5002221835 6002666202 10004443670 15006665505 30013331010