Search a number
-
+
30033342440 = 2356689112249
BaseRepresentation
bin11011111110001000…
…000110111111101000
32212112002000212121022
4123332020012333220
5443002013424230
621444102432012
72112153125063
oct337610067750
985462025538
1030033342440
1111812047772
1259a2132608
132aa826a55a
14164ca478da
15baba131e5
hex6fe206fe8

30033342440 has 32 divisors (see below), whose sum is σ = 67585725000. Its totient is φ = 12011433984.

The previous prime is 30033342421. The next prime is 30033342461. The reversal of 30033342440 is 4424333003.

It can be written as a sum of positive squares in 4 ways, for example, as 30018334564 + 15007876 = 173258^2 + 3874^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211436 + ... + 323684.

Almost surely, 230033342440 is an apocalyptic number.

It is an amenable number.

30033342440 is an abundant number, since it is smaller than the sum of its proper divisors (37552382560).

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

30033342440 is a wasteful number, since it uses less digits than its factorization.

30033342440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118949 (or 118945 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 26.

Adding to 30033342440 its reverse (4424333003), we get a palindrome (34457675443).

The spelling of 30033342440 in words is "thirty billion, thirty-three million, three hundred forty-two thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 6689 13378 26756 33445 53512 66890 112249 133780 224498 267560 448996 561245 897992 1122490 2244980 4489960 750833561 1501667122 3003334244 3754167805 6006668488 7508335610 15016671220 30033342440