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30204837140 = 2251510241857
BaseRepresentation
bin11100001000010110…
…010011110100010100
32212222000201201002212
4130020112103310110
5443324414242030
621513110252552
72116334610452
oct341026236424
985860651085
1030204837140
111189a930225
125a2b657158
132b04953cca
1416677299d2
15bbbadb595
hex708593d14

30204837140 has 12 divisors (see below), whose sum is σ = 63430158036. Its totient is φ = 12081934848.

The previous prime is 30204837137. The next prime is 30204837151. The reversal of 30204837140 is 4173840203.

It can be written as a sum of positive squares in 2 ways, for example, as 5957987344 + 24246849796 = 77188^2 + 155714^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30204837097 and 30204837106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 755120909 + ... + 755120948.

It is an arithmetic number, because the mean of its divisors is an integer number (5285846503).

Almost surely, 230204837140 is an apocalyptic number.

It is an amenable number.

30204837140 is an abundant number, since it is smaller than the sum of its proper divisors (33225320896).

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

30204837140 is a wasteful number, since it uses less digits than its factorization.

30204837140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1510241866 (or 1510241864 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The spelling of 30204837140 in words is "thirty billion, two hundred four million, eight hundred thirty-seven thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 1510241857 3020483714 6040967428 7551209285 15102418570 30204837140