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30031101232 = 24111391227563
BaseRepresentation
bin11011111101111111…
…100011110100110000
32212111220211000020121
4123331333203310300
5443000430214412
621443542420024
72112125101666
oct337577436460
985456730217
1030031101232
1111810856930
1259a1431614
132aa79643b2
14164c622c36
15bab71e107
hex6fdfe3d30

30031101232 has 40 divisors (see below), whose sum is σ = 63931533120. Its totient is φ = 13552284480.

The previous prime is 30031101209. The next prime is 30031101253. The reversal of 30031101232 is 23210113003.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 589318 + ... + 638245.

It is an arithmetic number, because the mean of its divisors is an integer number (1598288328).

Almost surely, 230031101232 is an apocalyptic number.

It is an amenable number.

30031101232 is an abundant number, since it is smaller than the sum of its proper divisors (33900431888).

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

30031101232 is a wasteful number, since it uses less digits than its factorization.

30031101232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227721 (or 1227715 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 30031101232 its reverse (23210113003), we get a palindrome (53241214235).

The spelling of 30031101232 in words is "thirty billion, thirty-one million, one hundred one thousand, two hundred thirty-two".

Divisors: 1 2 4 8 11 16 22 44 88 139 176 278 556 1112 1529 2224 3058 6116 12232 24464 1227563 2455126 4910252 9820504 13503193 19641008 27006386 54012772 108025544 170631257 216051088 341262514 682525028 1365050056 1876943827 2730100112 3753887654 7507775308 15015550616 30031101232