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12238710528 = 283112131701
BaseRepresentation
bin10110110010111101…
…11110011100000000
31011120221021220122010
423121132332130000
5200031102214103
65342234012520
7612200215542
oct133136763400
934527256563
1012238710528
115210484400
122456877140
131200753765
148415d9692
154b96c4903
hex2d97be700

12238710528 has 108 divisors (see below), whose sum is σ = 35803452104. Its totient is φ = 3708672000.

The previous prime is 12238710493. The next prime is 12238710569. The reversal of 12238710528 is 82501783221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27078 + ... + 158778.

Almost surely, 212238710528 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 12238710528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17901726052).

12238710528 is an abundant number, since it is smaller than the sum of its proper divisors (23564741576).

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

12238710528 is a wasteful number, since it uses less digits than its factorization.

12238710528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131742 (or 131717 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The spelling of 12238710528 in words is "twelve billion, two hundred thirty-eight million, seven hundred ten thousand, five hundred twenty-eight".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 64 66 88 96 121 128 132 176 192 242 256 264 352 363 384 484 528 704 726 768 968 1056 1408 1452 1936 2112 2816 2904 3872 4224 5808 7744 8448 11616 15488 23232 30976 46464 92928 131701 263402 395103 526804 790206 1053608 1448711 1580412 2107216 2897422 3160824 4214432 4346133 5794844 6321648 8428864 8692266 11589688 12643296 15935821 16857728 17384532 23179376 25286592 31871642 33715456 34769064 46358752 47807463 50573184 63743284 69538128 92717504 95614926 101146368 127486568 139076256 185435008 191229852 254973136 278152512 370870016 382459704 509946272 556305024 764919408 1019892544 1112610048 1529838816 2039785088 3059677632 4079570176 6119355264 12238710528