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1232100030 = 2357191092833
BaseRepresentation
bin100100101110000…
…0101101010111110
310011212102011111110
41021130011222332
510010404200110
6322132102450
742350451240
oct11134055276
93155364443
101232100030
11582540a97
122a4764a26
13168353295
14b98c8090
157327ba20
hex49705abe

1232100030 has 128 divisors (see below), whose sum is σ = 3591244800. Its totient is φ = 264259584.

The previous prime is 1232100029. The next prime is 1232100083. The reversal of 1232100030 is 300012321.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1232099979 and 1232100015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 433494 + ... + 436326.

It is an arithmetic number, because the mean of its divisors is an integer number (28056600).

Almost surely, 21232100030 is an apocalyptic number.

1232100030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1232100030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1795622400).

1232100030 is an abundant number, since it is smaller than the sum of its proper divisors (2359144770).

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

1232100030 is a wasteful number, since it uses less digits than its factorization.

1232100030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2978.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1232100030 is about 35101.2824552038. The cubic root of 1232100030 is about 1072.0506950250.

Adding to 1232100030 its reverse (300012321), we get a palindrome (1532112351).

The spelling of 1232100030 in words is "one billion, two hundred thirty-two million, one hundred thousand, thirty".

Divisors: 1 2 3 5 6 7 10 14 15 19 21 30 35 38 42 57 70 95 105 109 114 133 190 210 218 266 285 327 399 545 570 654 665 763 798 1090 1330 1526 1635 1995 2071 2289 2833 3270 3815 3990 4142 4578 5666 6213 7630 8499 10355 11445 12426 14165 14497 16998 19831 20710 22890 28330 28994 31065 39662 42495 43491 53827 59493 62130 72485 84990 86982 99155 107654 118986 144970 161481 198310 217455 269135 297465 308797 322962 376789 434910 538270 594930 617594 753578 807405 926391 1130367 1543985 1614810 1852782 1883945 2161579 2260734 3087970 3767890 4323158 4631955 5651835 5867143 6484737 9263910 10807895 11303670 11734286 12969474 17601429 21615790 29335715 32423685 35202858 41070001 58671430 64847370 82140002 88007145 123210003 176014290 205350005 246420006 410700010 616050015 1232100030