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30863486 = 2193792143
BaseRepresentation
bin111010110111…
…1000001111110
32011002000202002
41311233001332
530400112421
63021302302
7523223003
oct165570176
964060662
1030863486
1116470215
12a404992
136518024
1441558aa
152a99b0b
hex1d6f07e

30863486 has 16 divisors (see below), whose sum is σ = 48883200. Its totient is φ = 14574168.

The previous prime is 30863419. The next prime is 30863501. The reversal of 30863486 is 68436803.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

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, 13331 + ... + 15473.

It is an arithmetic number, because the mean of its divisors is an integer number (3055200).

Almost surely, 230863486 is an apocalyptic number.

30863486 is a deficient number, since it is larger than the sum of its proper divisors (18019714).

30863486 is a wasteful number, since it uses less digits than its factorization.

30863486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2543.

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 30863486 is about 5555.4915174087. The cubic root of 30863486 is about 313.6762658009.

The spelling of 30863486 in words is "thirty million, eight hundred sixty-three thousand, four hundred eighty-six".

Divisors: 1 2 19 38 379 758 2143 4286 7201 14402 40717 81434 812197 1624394 15431743 30863486