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30826019 = 75383089
BaseRepresentation
bin111010110010…
…1111000100011
32011000010100102
41311211320203
530342413034
63020413015
7523005530
oct165457043
964003312
1030826019
1116445054
12a3a716b
136503c63
144145d87
152a8d97e
hex1d65e23

30826019 has 8 divisors (see below), whose sum is σ = 35894880. Its totient is φ = 25923456.

The previous prime is 30826013. The next prime is 30826039. The reversal of 30826019 is 91062803.

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

It is a cyclic number.

It is not a de Polignac number, because 30826019 - 28 = 30825763 is a prime.

It is a super-2 number, since 2×308260192 = 1900486894776722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30825982 and 30826000.

It is not an unprimeable number, because it can be changed into a prime (30826013) 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, 41174 + ... + 41915.

It is an arithmetic number, because the mean of its divisors is an integer number (4486860).

Almost surely, 230826019 is an apocalyptic number.

30826019 is a deficient number, since it is larger than the sum of its proper divisors (5068861).

30826019 is an equidigital number, since it uses as much as digits as its factorization.

30826019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83149.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 30826019 is about 5552.1184245295. The cubic root of 30826019 is about 313.5492843840.

The spelling of 30826019 in words is "thirty million, eight hundred twenty-six thousand, nineteen".

Divisors: 1 7 53 371 83089 581623 4403717 30826019