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30493482840 = 2332584704119
BaseRepresentation
bin11100011001100011…
…011001111101011000
32220201010212102120100
4130121203121331120
5444422312422330
622001501055400
72126441220222
oct343143317530
986633772510
1030493482840
1111a28859a97
125ab0257560
132b4c6a7992
141693bc5412
15bd7106060
hex7198d9f58

30493482840 has 48 divisors (see below), whose sum is σ = 99103820400. Its totient is φ = 8131595328.

The previous prime is 30493482827. The next prime is 30493482871. The reversal of 30493482840 is 4828439403.

30493482840 is a `hidden beast` number, since 3 + 0 + 4 + 93 + 482 + 84 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42351700 + ... + 42352419.

It is an arithmetic number, because the mean of its divisors is an integer number (2064662925).

Almost surely, 230493482840 is an apocalyptic number.

30493482840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30493482840 is an abundant number, since it is smaller than the sum of its proper divisors (68610337560).

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

30493482840 is a wasteful number, since it uses less digits than its factorization.

30493482840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84704136 (or 84704129 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 45.

The spelling of 30493482840 in words is "thirty billion, four hundred ninety-three million, four hundred eighty-two thousand, eight hundred forty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 90 120 180 360 84704119 169408238 254112357 338816476 423520595 508224714 677632952 762337071 847041190 1016449428 1270561785 1524674142 1694082380 2032898856 2541123570 3049348284 3388164760 3811685355 5082247140 6098696568 7623370710 10164494280 15246741420 30493482840