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30345349980 = 22351145977803
BaseRepresentation
bin11100010000101110…
…010100101101011100
32220022211010111111010
4130100232110231130
5444121402144410
621535050055220
72122662135051
oct342056245534
986284114433
1030345349980
1111962182640
125a6a71a510
132b27ab08ba
14167c265028
15bc90e4c20
hex710b94b5c

30345349980 has 48 divisors (see below), whose sum is σ = 92691252864. Its totient is φ = 7356448320.

The previous prime is 30345349973. The next prime is 30345349981. The reversal of 30345349980 is 8994354303.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30345349981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22988242 + ... + 22989561.

It is an arithmetic number, because the mean of its divisors is an integer number (1931067768).

Almost surely, 230345349980 is an apocalyptic number.

30345349980 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30345349980 is an abundant number, since it is smaller than the sum of its proper divisors (62345902884).

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

30345349980 is a wasteful number, since it uses less digits than its factorization.

30345349980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45977826 (or 45977824 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 48.

The spelling of 30345349980 in words is "thirty billion, three hundred forty-five million, three hundred forty-nine thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 660 45977803 91955606 137933409 183911212 229889015 275866818 459778030 505755833 551733636 689667045 919556060 1011511666 1379334090 1517267499 2023023332 2528779165 2758668180 3034534998 5057558330 6069069996 7586337495 10115116660 15172674990 30345349980