Search a number
-
+
30011331312 = 2432228791129
BaseRepresentation
bin11011111100110100…
…001001001011110000
32212110112121121000100
4123330310021023300
5442430400100222
621441554552400
72111465051514
oct337464111360
985415547010
1030011331312
1111800683456
125996898700
132aa3831911
141649b58144
15ba9b164ac
hex6fcd092f0

30011331312 has 60 divisors (see below), whose sum is σ = 84027692320. Its totient is φ = 9999293184.

The previous prime is 30011331289. The next prime is 30011331313. The reversal of 30011331312 is 21313311003.

It is a happy number.

30011331312 is a `hidden beast` number, since 300 + 1 + 1 + 331 + 31 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30011331313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 283764 + ... + 374892.

Almost surely, 230011331312 is an apocalyptic number.

It is an amenable number.

30011331312 is an abundant number, since it is smaller than the sum of its proper divisors (54016361008).

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

30011331312 is a wasteful number, since it uses less digits than its factorization.

30011331312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93430 (or 93421 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 30011331312 its reverse (21313311003), we get a palindrome (51324642315).

The spelling of 30011331312 in words is "thirty billion, eleven million, three hundred thirty-one thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 2287 4574 6861 9148 13722 18296 20583 27444 36592 41166 54888 82332 91129 109776 164664 182258 273387 329328 364516 546774 729032 820161 1093548 1458064 1640322 2187096 3280644 4374192 6561288 13122576 208412023 416824046 625236069 833648092 1250472138 1667296184 1875708207 2500944276 3334592368 3751416414 5001888552 7502832828 10003777104 15005665656 30011331312