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30629931982 = 2133179481043
BaseRepresentation
bin11100100001101011…
…111010101111001110
32221001122121202121021
4130201223322233032
51000212230310412
622023213424354
72133016061146
oct344153725716
987048552537
1030629931982
1111a98886281
125b29a9b0ba
132b71a40a10
1416a7d83926
15be40aa607
hex721afabce

30629931982 has 32 divisors (see below), whose sum is σ = 51721850880. Its totient is φ = 13507659360.

The previous prime is 30629931973. The next prime is 30629931989. The reversal of 30629931982 is 28913992603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30629931989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176848 + ... + 304195.

It is an arithmetic number, because the mean of its divisors is an integer number (1616307840).

Almost surely, 230629931982 is an apocalyptic number.

30629931982 is a deficient number, since it is larger than the sum of its proper divisors (21091918898).

30629931982 is a wasteful number, since it uses less digits than its factorization.

30629931982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481168.

The product of its (nonzero) digits is 1259712, while the sum is 52.

The spelling of 30629931982 in words is "thirty billion, six hundred twenty-nine million, nine hundred thirty-one thousand, nine hundred eighty-two".

Divisors: 1 2 13 26 31 62 79 158 403 806 1027 2054 2449 4898 31837 63674 481043 962086 6253559 12507118 14912333 29824666 38002397 76004794 193860329 387720658 494031161 988062322 1178074307 2356148614 15314965991 30629931982