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30540444450 = 2352255179813
BaseRepresentation
bin11100011100010110…
…100011001100100010
32220211102020022210020
4130130112203030202
51000021323210300
622010255414310
72130551331435
oct343426431442
986742208706
1030540444450
1111a52314a3a
125b03b24396
132b5933b109
14169a12b81c
15bdb2d08a0
hex71c5a3322

30540444450 has 48 divisors (see below), whose sum is σ = 75770942016. Its totient is φ = 8140824000.

The previous prime is 30540444421. The next prime is 30540444541. The reversal of 30540444450 is 5444404503.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 342744 + ... + 422556.

It is an arithmetic number, because the mean of its divisors is an integer number (1578561292).

Almost surely, 230540444450 is an apocalyptic number.

30540444450 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30540444450 is an abundant number, since it is smaller than the sum of its proper divisors (45230497566).

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

30540444450 is a wasteful number, since it uses less digits than its factorization.

30540444450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82379 (or 82374 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 33.

Adding to 30540444450 its reverse (5444404503), we get a palindrome (35984848953).

The spelling of 30540444450 in words is "thirty billion, five hundred forty million, four hundred forty-four thousand, four hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 150 2551 5102 7653 12755 15306 25510 38265 63775 76530 79813 127550 159626 191325 239439 382650 399065 478878 798130 1197195 1995325 2394390 3990650 5985975 11971950 203602963 407205926 610808889 1018014815 1221617778 2036029630 3054044445 5090074075 6108088890 10180148150 15270222225 30540444450