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30384984 = 23371710639
BaseRepresentation
bin111001111101…
…0001101011000
32010011201100210
41303322031120
530234304414
63003131120
7516160650
oct163721530
963151323
1030384984
1116173763
12a213aa0
1363ab2a6
14406d360
152a02e59
hex1cfa358

30384984 has 64 divisors (see below), whose sum is σ = 91929600. Its totient is φ = 8169984.

The previous prime is 30384943. The next prime is 30384989. The reversal of 30384984 is 48948303.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30384989) 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, 2464 + ... + 8175.

It is an arithmetic number, because the mean of its divisors is an integer number (1436400).

Almost surely, 230384984 is an apocalyptic number.

30384984 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

30384984 is an abundant number, since it is smaller than the sum of its proper divisors (61544616).

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

30384984 is a wasteful number, since it uses less digits than its factorization.

30384984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10672 (or 10668 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 30384984 is about 5512.2576137187. The cubic root of 30384984 is about 312.0467549918.

The spelling of 30384984 in words is "thirty million, three hundred eighty-four thousand, nine hundred eighty-four".

Divisors: 1 2 3 4 6 7 8 12 14 17 21 24 28 34 42 51 56 68 84 102 119 136 168 204 238 357 408 476 714 952 1428 2856 10639 21278 31917 42556 63834 74473 85112 127668 148946 180863 223419 255336 297892 361726 446838 542589 595784 723452 893676 1085178 1266041 1446904 1787352 2170356 2532082 3798123 4340712 5064164 7596246 10128328 15192492 30384984