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30858269 = 137930047
BaseRepresentation
bin111010110110…
…1110000011101
32011001202120212
41311231300131
530344431034
63021222205
7523201541
oct165556035
964052525
1030858269
1116467302
12a401965
136515840
144153a21
152a982ce
hex1d6dc1d

30858269 has 8 divisors (see below), whose sum is σ = 33653760. Its totient is φ = 28123056.

The previous prime is 30858263. The next prime is 30858271. The reversal of 30858269 is 96285803.

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

It is not a de Polignac number, because 30858269 - 28 = 30858013 is a prime.

It is a super-2 number, since 2×308582692 = 1904465531352722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30858263) 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, 13997 + ... + 16050.

It is an arithmetic number, because the mean of its divisors is an integer number (4206720).

Almost surely, 230858269 is an apocalyptic number.

It is an amenable number.

30858269 is a deficient number, since it is larger than the sum of its proper divisors (2795491).

30858269 is a wasteful number, since it uses less digits than its factorization.

30858269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30139.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 30858269 is about 5555.0219621528. The cubic root of 30858269 is about 313.6585907475.

The spelling of 30858269 in words is "thirty million, eight hundred fifty-eight thousand, two hundred sixty-nine".

Divisors: 1 13 79 1027 30047 390611 2373713 30858269