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30738904590 = 23510110144853
BaseRepresentation
bin11100101000001011…
…100111011000001110
32221100020200010220210
4130220023213120032
51000423124421330
622042105223250
72135511243432
oct345013473016
987306603823
1030738904590
1112044345a89
125b5a491b26
132b8b4a6554
1416b862c9c2
15bed9338b0
hex7282e760e

30738904590 has 32 divisors (see below), whose sum is σ = 74503807776. Its totient is φ = 8115881600.

The previous prime is 30738904589. The next prime is 30738904627. The reversal of 30738904590 is 9540983703.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5069397 + ... + 5075456.

It is an arithmetic number, because the mean of its divisors is an integer number (2328243993).

Almost surely, 230738904590 is an apocalyptic number.

30738904590 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30738904590 is an abundant number, since it is smaller than the sum of its proper divisors (43764903186).

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

30738904590 is a wasteful number, since it uses less digits than its factorization.

30738904590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10144964.

The product of its (nonzero) digits is 816480, while the sum is 48.

The spelling of 30738904590 in words is "thirty billion, seven hundred thirty-eight million, nine hundred four thousand, five hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 101 202 303 505 606 1010 1515 3030 10144853 20289706 30434559 50724265 60869118 101448530 152172795 304345590 1024630153 2049260306 3073890459 5123150765 6147780918 10246301530 15369452295 30738904590