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30540224412 = 22322378746867
BaseRepresentation
bin11100011100010101…
…101101011110011100
32220211101211010221200
4130130111231132130
51000021244140122
622010250555500
72130546424065
oct343425553634
986741733850
1030540224412
1111a52184695
125b03a38b90
132b59291c09
14169a0b156c
15bdb28a5ac
hex71c56d79c

30540224412 has 72 divisors (see below), whose sum is σ = 80659453056. Its totient is φ = 9724882464.

The previous prime is 30540224387. The next prime is 30540224419. The reversal of 30540224412 is 21442204503.

30540224412 is a `hidden beast` number, since 3 + 0 + 5 + 402 + 244 + 12 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30540224419) 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, 628203 + ... + 675069.

Almost surely, 230540224412 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 30540224412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40329726528).

30540224412 is an abundant number, since it is smaller than the sum of its proper divisors (50119228644).

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

30540224412 is a wasteful number, since it uses less digits than its factorization.

30540224412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47687 (or 47682 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 30540224412 its reverse (21442204503), we get a palindrome (51982428915).

The spelling of 30540224412 in words is "thirty billion, five hundred forty million, two hundred twenty-four thousand, four hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 23 36 46 69 92 138 207 276 414 787 828 1574 2361 3148 4722 7083 9444 14166 18101 28332 36202 46867 54303 72404 93734 108606 140601 162909 187468 217212 281202 325818 421803 562404 651636 843606 1077941 1687212 2155882 3233823 4311764 6467646 9701469 12935292 19402938 36884329 38805876 73768658 110652987 147537316 221305974 331958961 442611948 663917922 848339567 1327835844 1696679134 2545018701 3393358268 5090037402 7635056103 10180074804 15270112206 30540224412