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30738485 = 5192571259
BaseRepresentation
bin111010101000…
…0100000110101
32010211200021102
41311100200311
530332112420
63014455445
7522162401
oct165204065
963750242
1030738485
1116395308
12a364585
1364a316b
144122101
152a72a75
hex1d50835

30738485 has 16 divisors (see below), whose sum is σ = 39009600. Its totient is φ = 23187456.

The previous prime is 30738481. The next prime is 30738493. The reversal of 30738485 is 58483703.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 30738485 - 22 = 30738481 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30738481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23786 + ... + 25044.

It is an arithmetic number, because the mean of its divisors is an integer number (2438100).

Almost surely, 230738485 is an apocalyptic number.

It is an amenable number.

30738485 is a deficient number, since it is larger than the sum of its proper divisors (8271115).

30738485 is a wasteful number, since it uses less digits than its factorization.

30738485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1540.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 30738485 is about 5544.2298834013. The cubic root of 30738485 is about 313.2522166914.

The spelling of 30738485 in words is "thirty million, seven hundred thirty-eight thousand, four hundred eighty-five".

Divisors: 1 5 19 95 257 1259 1285 4883 6295 23921 24415 119605 323563 1617815 6147697 30738485