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30311211132 = 2232532299743
BaseRepresentation
bin11100001110101100…
…000110000001111100
32220020102220001210100
4130032230012001330
5444034132224012
621531430241100
72122066020636
oct341654060174
986212801710
1030311211132
1111944985614
125a5b1b6190
132b209b9ab7
1416778d9a56
15bc60ee8dc
hex70eb0607c

30311211132 has 54 divisors (see below), whose sum is σ = 78093203552. Its totient is φ = 9913067424.

The previous prime is 30311211127. The next prime is 30311211169. The reversal of 30311211132 is 23111211303.

It is a super-3 number, since 3×303112111323 (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 48748 + ... + 250995.

Almost surely, 230311211132 is an apocalyptic number.

It is an amenable number.

30311211132 is an abundant number, since it is smaller than the sum of its proper divisors (47781992420).

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

30311211132 is a wasteful number, since it uses less digits than its factorization.

30311211132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299859 (or 299801 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 30311211132 its reverse (23111211303), we get a palindrome (53422422435).

The spelling of 30311211132 in words is "thirty billion, three hundred eleven million, two hundred eleven thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 36 53 106 159 212 318 477 636 954 1908 2809 5618 8427 11236 16854 25281 33708 50562 101124 299743 599486 899229 1198972 1798458 2697687 3596916 5395374 10790748 15886379 31772758 47659137 63545516 95318274 142977411 190636548 285954822 571909644 841978087 1683956174 2525934261 3367912348 5051868522 7577802783 10103737044 15155605566 30311211132