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30675745 = 521312879
BaseRepresentation
bin111010100000…
…1001100100001
32010201111012201
41311001030201
530323110440
63013253201
7521511442
oct165011441
963644181
1030675745
1116352161
12a334201
136480739
1441072c9
152a5e19a
hex1d41321

30675745 has 8 divisors (see below), whose sum is σ = 36840960. Its totient is φ = 24520560.

The previous prime is 30675737. The next prime is 30675787. The reversal of 30675745 is 54757603.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30675745 - 23 = 30675737 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9216 + ... + 12094.

It is an arithmetic number, because the mean of its divisors is an integer number (4605120).

Almost surely, 230675745 is an apocalyptic number.

It is an amenable number.

30675745 is a deficient number, since it is larger than the sum of its proper divisors (6165215).

30675745 is a wasteful number, since it uses less digits than its factorization.

30675745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5015.

The product of its (nonzero) digits is 88200, while the sum is 37.

The square root of 30675745 is about 5538.5688584688. The cubic root of 30675745 is about 313.0389462505.

The spelling of 30675745 in words is "thirty million, six hundred seventy-five thousand, seven hundred forty-five".

Divisors: 1 5 2131 2879 10655 14395 6135149 30675745