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30211211310 = 2357473060913
BaseRepresentation
bin11100001000101110…
…101000000000101110
32212222110201112211020
4130020232220000232
5443333032230220
621513455035010
72116443026160
oct341056500056
985873645736
1030211211310
11118a3494235
125a3180ba66
132b060763c7
141668508930
15bbc44a040
hex708ba802e

30211211310 has 64 divisors (see below), whose sum is σ = 84628150272. Its totient is φ = 6758493696.

The previous prime is 30211211291. The next prime is 30211211369. The reversal of 30211211310 is 1311211203.

It is a happy number.

It is a super-2 number, since 2×302112113102 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 30211211310.

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, 1520587 + ... + 1540326.

It is an arithmetic number, because the mean of its divisors is an integer number (1322314848).

Almost surely, 230211211310 is an apocalyptic number.

30211211310 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30211211310 is an abundant number, since it is smaller than the sum of its proper divisors (54416938962).

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

30211211310 is a wasteful number, since it uses less digits than its factorization.

30211211310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3060977.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 30211211310 its reverse (1311211203), we get a palindrome (31522422513).

The spelling of 30211211310 in words is "thirty billion, two hundred eleven million, two hundred eleven thousand, three hundred ten".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 47 70 94 105 141 210 235 282 329 470 658 705 987 1410 1645 1974 3290 4935 9870 3060913 6121826 9182739 15304565 18365478 21426391 30609130 42852782 45913695 64279173 91827390 107131955 128558346 143862911 214263910 287725822 321395865 431588733 642791730 719314555 863177466 1007040377 1438629110 2014080754 2157943665 3021121131 4315887330 5035201885 6042242262 10070403770 15105605655 30211211310