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30857014 = 243135797
BaseRepresentation
bin111010110110…
…1011100110110
32011001200212101
41311231130312
530344411024
63021212314
7523165066
oct165553466
964050771
1030857014
1116466371
12a40109a
1365150b6
1441533a6
152a97c44
hex1d6d736

30857014 has 8 divisors (see below), whose sum is σ = 46394208. Its totient is φ = 15392280.

The previous prime is 30857009. The next prime is 30857039. The reversal of 30857014 is 41075803.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17037 + ... + 18760.

It is an arithmetic number, because the mean of its divisors is an integer number (5799276).

Almost surely, 230857014 is an apocalyptic number.

30857014 is a deficient number, since it is larger than the sum of its proper divisors (15537194).

30857014 is a wasteful number, since it uses less digits than its factorization.

30857014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36230.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 30857014 is about 5554.9090001547. The cubic root of 30857014 is about 313.6543385445.

The spelling of 30857014 in words is "thirty million, eight hundred fifty-seven thousand, fourteen".

Divisors: 1 2 431 862 35797 71594 15428507 30857014