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30196470 = 23523107409
BaseRepresentation
bin111001100110…
…0001011110110
32002211010202210
41303030023312
530212241340
62555114250
7514444233
oct163141366
962733683
1030196470
1116055067
12a142986
136343545
14402078a
1529b7180
hex1ccc2f6

30196470 has 64 divisors (see below), whose sum is σ = 76515840. Its totient is φ = 7611648.

The previous prime is 30196423. The next prime is 30196487. The reversal of 30196470 is 7469103.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73626 + ... + 74034.

It is an arithmetic number, because the mean of its divisors is an integer number (1195560).

Almost surely, 230196470 is an apocalyptic number.

30196470 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30196470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38257920).

30196470 is an abundant number, since it is smaller than the sum of its proper divisors (46319370).

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

30196470 is a wasteful number, since it uses less digits than its factorization.

30196470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 30196470 is about 5495.1314815935. The cubic root of 30196470 is about 311.4000840672.

The spelling of 30196470 in words is "thirty million, one hundred ninety-six thousand, four hundred seventy".

Divisors: 1 2 3 5 6 10 15 23 30 46 69 107 115 138 214 230 321 345 409 535 642 690 818 1070 1227 1605 2045 2454 2461 3210 4090 4922 6135 7383 9407 12270 12305 14766 18814 24610 28221 36915 43763 47035 56442 73830 87526 94070 131289 141105 218815 262578 282210 437630 656445 1006549 1312890 2013098 3019647 5032745 6039294 10065490 15098235 30196470