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30012111010 = 25719435091031
BaseRepresentation
bin11011111100110111…
…000111100010100010
32212110121002012120001
4123330313013202202
5442431100023020
621442023410214
72111504506630
oct337467074242
985417065501
1030012111010
1111801066232
125996bb396a
132aa3a4578b
141649cbc350
15ba9c1c50a
hex6fcdc78a2

30012111010 has 128 divisors (see below), whose sum is σ = 66695270400. Its totient is φ = 9493666560.

The previous prime is 30012111001. The next prime is 30012111011. The reversal of 30012111010 is 1011121003.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (30012111011) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29109195 + ... + 29110225.

It is an arithmetic number, because the mean of its divisors is an integer number (521056800).

Almost surely, 230012111010 is an apocalyptic number.

30012111010 is an abundant number, since it is smaller than the sum of its proper divisors (36683159390).

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

30012111010 is a wasteful number, since it uses less digits than its factorization.

30012111010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1616.

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 30012111010 its reverse (1011121003), we get a palindrome (31023232013).

The spelling of 30012111010 in words is "thirty billion, twelve million, one hundred eleven thousand, ten".

Divisors: 1 2 5 7 10 14 19 35 38 43 70 86 95 133 190 215 266 301 430 509 602 665 817 1018 1031 1330 1505 1634 2062 2545 3010 3563 4085 5090 5155 5719 7126 7217 8170 9671 10310 11438 14434 17815 19342 19589 21887 28595 35630 36085 39178 43774 44333 48355 57190 67697 72170 88666 96710 97945 109435 135394 137123 153209 195890 218870 221665 274246 306418 310331 338485 415853 443330 524779 620662 676970 685615 766045 831706 842327 1049558 1371230 1532090 1551655 1684654 2079265 2623895 2910971 3103310 3673453 4158530 4211635 5247790 5821942 5896289 7346906 8423270 9970801 11792578 14554855 18367265 19941602 22565497 29109710 29481445 36734530 45130994 49854005 58962890 69795607 99708010 112827485 139591214 157958479 225654970 315916958 348978035 428744443 697956070 789792395 857488886 1579584790 2143722215 3001211101 4287444430 6002422202 15006055505 30012111010