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30288889740 = 22352200322943
BaseRepresentation
bin11100001101010110…
…111100011110001100
32220011212220000121010
4130031112330132030
5444012423432430
621525312005220
72121405212664
oct341526743614
986155800533
1030288889740
111193331a18a
125a53830810
132b191a2b85
1416749691a4
15bc4190cb0
hex70d5bc78c

30288889740 has 48 divisors (see below), whose sum is σ = 84816442368. Its totient is φ = 8076318144.

The previous prime is 30288889733. The next prime is 30288889747. The reversal of 30288889740 is 4798888203.

It is an interprime number because it is at equal distance from previous prime (30288889733) and next prime (30288889747).

It is not an unprimeable number, because it can be changed into a prime (30288889747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1308709 + ... + 1331651.

It is an arithmetic number, because the mean of its divisors is an integer number (1767009216).

Almost surely, 230288889740 is an apocalyptic number.

30288889740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30288889740 is an abundant number, since it is smaller than the sum of its proper divisors (54527552628).

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

30288889740 is a wasteful number, since it uses less digits than its factorization.

30288889740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44958 (or 44956 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 57.

The spelling of 30288889740 in words is "thirty billion, two hundred eighty-eight million, eight hundred eighty-nine thousand, seven hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 22003 22943 44006 45886 66009 68829 88012 91772 110015 114715 132018 137658 220030 229430 264036 275316 330045 344145 440060 458860 660090 688290 1320180 1376580 504814829 1009629658 1514444487 2019259316 2524074145 3028888974 5048148290 6057777948 7572222435 10096296580 15144444870 30288889740