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1230133430 = 2517127227251
BaseRepresentation
bin100100101010010…
…0101100010110110
310011201201020211102
41021110211202312
510004403232210
6322022010102
742324650561
oct11124454266
93151636742
101230133430
115814184a9
122a3b76932
13167b15106
14b95354d8
1572eddea5
hex495258b6

1230133430 has 64 divisors (see below), whose sum is σ = 2382815232. Its totient is φ = 455616000.

The previous prime is 1230133423. The next prime is 1230133441. The reversal of 1230133430 is 343310321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4900805 + ... + 4901055.

It is an arithmetic number, because the mean of its divisors is an integer number (37231488).

Almost surely, 21230133430 is an apocalyptic number.

1230133430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1230133430 is a deficient number, since it is larger than the sum of its proper divisors (1152681802).

1230133430 is a wasteful number, since it uses less digits than its factorization.

1230133430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1230133430 is about 35073.2580465516. The cubic root of 1230133430 is about 1071.4800114901.

Adding to 1230133430 its reverse (343310321), we get a palindrome (1573443751).

The spelling of 1230133430 in words is "one billion, two hundred thirty million, one hundred thirty-three thousand, four hundred thirty".

Divisors: 1 2 5 10 17 34 85 127 170 227 251 254 454 502 635 1135 1255 1270 2159 2270 2510 3859 4267 4318 7718 8534 10795 19295 21335 21590 28829 31877 38590 42670 56977 57658 63754 113954 144145 159385 284885 288290 318770 490093 541909 569770 968609 980186 1083818 1937218 2450465 2709545 4843045 4900930 5419090 7236079 9686090 14472158 36180395 72360790 123013343 246026686 615066715 1230133430