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30528474734 = 2137665316747
BaseRepresentation
bin11100011011101000…
…111000111001101110
32220210120201012102102
4130123220320321232
51000010242142414
622005151055102
72130344516342
oct343350707156
986716635372
1030528474734
1111a46589a0a
125abbb11492
132b56a09b44
1416986d3622
15bda218ede
hex71ba38e6e

30528474734 has 16 divisors (see below), whose sum is σ = 46136653488. Its totient is φ = 15149637312.

The previous prime is 30528474577. The next prime is 30528474737. The reversal of 30528474734 is 43747482503.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30528474737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1814549 + ... + 1831295.

It is an arithmetic number, because the mean of its divisors is an integer number (2883540843).

Almost surely, 230528474734 is an apocalyptic number.

30528474734 is a deficient number, since it is larger than the sum of its proper divisors (15608178754).

30528474734 is a wasteful number, since it uses less digits than its factorization.

30528474734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23539.

The product of its (nonzero) digits is 2257920, while the sum is 47.

The spelling of 30528474734 in words is "thirty billion, five hundred twenty-eight million, four hundred seventy-four thousand, seven hundred thirty-four".

Divisors: 1 2 137 274 6653 13306 16747 33494 911461 1822922 2294339 4588678 111417791 222835582 15264237367 30528474734