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201230231430 = 23567100114543
BaseRepresentation
bin1011101101101001000…
…0011010011110000110
3201020102002011220202110
42323122100122132012
511244104414401210
6232235514121450
720352446513364
oct2733220323606
9636362156673
10201230231430
1178383246298
1232bbb720286
1315c8c169a77
149a4d640634
15537b482420
hex2eda41a786

201230231430 has 32 divisors (see below), whose sum is σ = 490160807424. Its totient is φ = 52860478176.

The previous prime is 201230231417. The next prime is 201230231441. The reversal of 201230231430 is 34132032102.

201230231430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 201230231397 and 201230231406.

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 15 ways as a sum of consecutive naturals, for example, 50055262 + ... + 50059281.

It is an arithmetic number, because the mean of its divisors is an integer number (15317525232).

Almost surely, 2201230231430 is an apocalyptic number.

201230231430 is an abundant number, since it is smaller than the sum of its proper divisors (288930575994).

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

201230231430 is a wasteful number, since it uses less digits than its factorization.

201230231430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100114620.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 201230231430 its reverse (34132032102), we get a palindrome (235362263532).

The spelling of 201230231430 in words is "two hundred one billion, two hundred thirty million, two hundred thirty-one thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 67 134 201 335 402 670 1005 2010 100114543 200229086 300343629 500572715 600687258 1001145430 1501718145 3003436290 6707674381 13415348762 20123023143 33538371905 40246046286 67076743810 100615115715 201230231430