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30400424412 = 22331107763753
BaseRepresentation
bin11100010100000000…
…011010100111011100
32220110122202120101220
4130110000122213130
5444230002040122
621544334333340
72124231225651
oct342400324734
986418676356
1030400424412
11119902798a6
125a8505a250
132b36324917
1416856bdc28
15bcdd7325c
hex71401a9dc

30400424412 has 48 divisors (see below), whose sum is σ = 73906947072. Its totient is φ = 9714925440.

The previous prime is 30400424387. The next prime is 30400424419. The reversal of 30400424412 is 21442400403.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30400424419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342073 + ... + 421680.

It is an arithmetic number, because the mean of its divisors is an integer number (1539728064).

Almost surely, 230400424412 is an apocalyptic number.

It is an amenable number.

30400424412 is an abundant number, since it is smaller than the sum of its proper divisors (43506522660).

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

30400424412 is a wasteful number, since it uses less digits than its factorization.

30400424412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763898 (or 763896 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 30400424412 its reverse (21442400403), we get a palindrome (51842824815).

The spelling of 30400424412 in words is "thirty billion, four hundred million, four hundred twenty-four thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 31 62 93 107 124 186 214 321 372 428 642 1284 3317 6634 9951 13268 19902 39804 763753 1527506 2291259 3055012 4582518 9165036 23676343 47352686 71029029 81721571 94705372 142058058 163443142 245164713 284116116 326886284 490329426 980658852 2533368701 5066737402 7600106103 10133474804 15200212206 30400424412