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30898206 = 233718059
BaseRepresentation
bin111010111011…
…1100000011110
32011010210101000
41311313200132
530402220311
63022131130
7523426143
oct165674036
964123330
1030898206
1116494309
12a420aa6
13652aa81
1441643ca
152aa5056
hex1d7781e

30898206 has 32 divisors (see below), whose sum is σ = 69638400. Its totient is φ = 10153080.

The previous prime is 30898193. The next prime is 30898213. The reversal of 30898206 is 60289803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196 + ... + 7863.

It is an arithmetic number, because the mean of its divisors is an integer number (2176200).

Almost surely, 230898206 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30898206, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34819200).

30898206 is an abundant number, since it is smaller than the sum of its proper divisors (38740194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30898206 is a wasteful number, since it uses less digits than its factorization.

30898206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8141 (or 8135 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 30898206 is about 5558.6154750981. The cubic root of 30898206 is about 313.7938455044.

The spelling of 30898206 in words is "thirty million, eight hundred ninety-eight thousand, two hundred six".

Divisors: 1 2 3 6 9 18 27 54 71 142 213 426 639 1278 1917 3834 8059 16118 24177 48354 72531 145062 217593 435186 572189 1144378 1716567 3433134 5149701 10299402 15449103 30898206