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30902196 = 22313198091
BaseRepresentation
bin111010111100…
…0011110110100
32011010222211210
41311320132310
530402332241
63022201420
7523443603
oct165703664
964128753
1030902196
1116497306
12a423270
13652c830
144165a3a
152aa6316
hex1d787b4

30902196 has 24 divisors (see below), whose sum is σ = 77652064. Its totient is φ = 9508320.

The previous prime is 30902167. The next prime is 30902219. The reversal of 30902196 is 69120903.

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, 98890 + ... + 99201.

Almost surely, 230902196 is an apocalyptic number.

It is an amenable number.

30902196 is an abundant number, since it is smaller than the sum of its proper divisors (46749868).

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

30902196 is a wasteful number, since it uses less digits than its factorization.

30902196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198111 (or 198109 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 30902196 is about 5558.9743658340. The cubic root of 30902196 is about 313.8073520443.

The spelling of 30902196 in words is "thirty million, nine hundred two thousand, one hundred ninety-six".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 198091 396182 594273 792364 1188546 2377092 2575183 5150366 7725549 10300732 15451098 30902196