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30104988 = 22341431423
BaseRepresentation
bin111001011010…
…1110110011100
32002122111021120
41302311312130
530201324423
62553130540
7513613434
oct162656634
962574246
1030104988
1115aa2361
12a0b9a50
136310a04
143dd92c4
152999ee3
hex1cb5d9c

30104988 has 48 divisors (see below), whose sum is σ = 73683456. Its totient is φ = 9555840.

The previous prime is 30104933. The next prime is 30104989. The reversal of 30104988 is 88940103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30104989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20445 + ... + 21867.

It is an arithmetic number, because the mean of its divisors is an integer number (1535072).

Almost surely, 230104988 is an apocalyptic number.

It is an amenable number.

30104988 is an abundant number, since it is smaller than the sum of its proper divisors (43578468).

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

30104988 is a wasteful number, since it uses less digits than its factorization.

30104988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1514 (or 1512 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 30104988 is about 5486.8012539184. The cubic root of 30104988 is about 311.0852976126.

The spelling of 30104988 in words is "thirty million, one hundred four thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 12 41 43 82 86 123 129 164 172 246 258 492 516 1423 1763 2846 3526 4269 5289 5692 7052 8538 10578 17076 21156 58343 61189 116686 122378 175029 183567 233372 244756 350058 367134 700116 734268 2508749 5017498 7526247 10034996 15052494 30104988