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30023032032 = 2532714892377
BaseRepresentation
bin11011111101100000…
…110001110011100000
32212111100122001101100
4123331200301303200
5442441344011112
621443053434400
72111666363430
oct337540616340
985440561340
1030023032032
1111807245374
12599a79ba00
132aa609a616
14164b5222c0
15baab782dc
hex6fd831ce0

30023032032 has 72 divisors (see below), whose sum is σ = 97574860656. Its totient is φ = 8578008576.

The previous prime is 30023032007. The next prime is 30023032051. The reversal of 30023032032 is 23023032003.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 30023031996 and 30023032014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7444173 + ... + 7448204.

It is an arithmetic number, because the mean of its divisors is an integer number (1355206398).

Almost surely, 230023032032 is an apocalyptic number.

30023032032 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30023032032 is an abundant number, since it is smaller than the sum of its proper divisors (67551828624).

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

30023032032 is a wasteful number, since it uses less digits than its factorization.

30023032032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14892400 (or 14892389 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 18.

Adding to 30023032032 its reverse (23023032003), we get a palindrome (53046064035).

The spelling of 30023032032 in words is "thirty billion, twenty-three million, thirty-two thousand, thirty-two".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 56 63 72 84 96 112 126 144 168 224 252 288 336 504 672 1008 2016 14892377 29784754 44677131 59569508 89354262 104246639 119139016 134031393 178708524 208493278 238278032 268062786 312739917 357417048 416986556 476556064 536125572 625479834 714834096 833973112 938219751 1072251144 1250959668 1429668192 1667946224 1876439502 2144502288 2501919336 3335892448 3752879004 4289004576 5003838672 7505758008 10007677344 15011516016 30023032032