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30043621320 = 23351783140417
BaseRepresentation
bin11011111110101111…
…010100011111001000
32212112210101002120120
4123332233110133020
5443012131340240
621445111023240
72112336365466
oct337657243710
985483332516
1030043621320
1111817928409
1259a566ab20
132aaa42902b
141650161836
15bac893ad0
hex6febd47c8

30043621320 has 64 divisors (see below), whose sum is σ = 90182056320. Its totient is φ = 8007081984.

The previous prime is 30043621301. The next prime is 30043621327. The reversal of 30043621320 is 2312634003.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (30043621327) 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, 143752 + ... + 284168.

It is an arithmetic number, because the mean of its divisors is an integer number (1409094630).

Almost surely, 230043621320 is an apocalyptic number.

30043621320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30043621320 is an abundant number, since it is smaller than the sum of its proper divisors (60138435000).

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

30043621320 is a wasteful number, since it uses less digits than its factorization.

30043621320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142214 (or 142210 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

The spelling of 30043621320 in words is "thirty billion, forty-three million, six hundred twenty-one thousand, three hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 1783 3566 5349 7132 8915 10698 14264 17830 21396 26745 35660 42792 53490 71320 106980 140417 213960 280834 421251 561668 702085 842502 1123336 1404170 1685004 2106255 2808340 3370008 4212510 5616680 8425020 16850040 250363511 500727022 751090533 1001454044 1251817555 1502181066 2002908088 2503635110 3004362132 3755452665 5007270220 6008724264 7510905330 10014540440 15021810660 30043621320