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30828926 = 215414463
BaseRepresentation
bin111010110011…
…0100101111110
32011000021100002
41311212211332
530343011201
63020434302
7523020152
oct165464576
964007302
1030828926
1116447257
12a3a8992
13650538b
144147062
152a8e76b
hex1d6697e

30828926 has 4 divisors (see below), whose sum is σ = 46243392. Its totient is φ = 15414462.

The previous prime is 30828913. The next prime is 30828953. The reversal of 30828926 is 62982803.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62982803 = 134844831.

It is a self number, because there is not a number n which added to its sum of digits gives 30828926.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7707230 + ... + 7707233.

It is an arithmetic number, because the mean of its divisors is an integer number (11560848).

Almost surely, 230828926 is an apocalyptic number.

30828926 is a deficient number, since it is larger than the sum of its proper divisors (15414466).

30828926 is a wasteful number, since it uses less digits than its factorization.

30828926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15414465.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 30828926 is about 5552.3802103242. The cubic root of 30828926 is about 313.5591403342.

The spelling of 30828926 in words is "thirty million, eight hundred twenty-eight thousand, nine hundred twenty-six".

Divisors: 1 2 15414463 30828926