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30810152256 = 2631315778623
BaseRepresentation
bin11100101100011011…
…011001110101000000
32221112012201220100020
4130230123121311000
51001044344333011
622053132253440
72140334654532
oct345433316500
987465656306
1030810152256
1112080589454
125b7a311280
132ba0190c30
1416c3c97852
15c04d09006
hex72c6d9d40

30810152256 has 112 divisors (see below), whose sum is σ = 88349474304. Its totient is φ = 9419544576.

The previous prime is 30810152239. The next prime is 30810152279. The reversal of 30810152256 is 65225101803.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 352561 + ... + 431183.

It is an arithmetic number, because the mean of its divisors is an integer number (788834592).

Almost surely, 230810152256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30810152256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44174737152).

30810152256 is an abundant number, since it is smaller than the sum of its proper divisors (57539322048).

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

30810152256 is a wasteful number, since it uses less digits than its factorization.

30810152256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78808 (or 78798 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The spelling of 30810152256 in words is "thirty billion, eight hundred ten million, one hundred fifty-two thousand, two hundred fifty-six".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 64 78 96 104 156 157 192 208 312 314 416 471 624 628 832 942 1248 1256 1884 2041 2496 2512 3768 4082 5024 6123 7536 8164 10048 12246 15072 16328 24492 30144 32656 48984 65312 78623 97968 130624 157246 195936 235869 314492 391872 471738 628984 943476 1022099 1257968 1886952 2044198 2515936 3066297 3773904 4088396 5031872 6132594 7547808 8176792 12265188 12343811 15095616 16353584 24530376 24687622 32707168 37031433 49060752 49375244 65414336 74062866 98121504 98750488 148125732 160469543 196243008 197500976 296251464 320939086 395001952 481408629 592502928 641878172 790003904 962817258 1185005856 1283756344 1925634516 2370011712 2567512688 3851269032 5135025376 7702538064 10270050752 15405076128 30810152256