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20601001152 = 263255916397
BaseRepresentation
bin10011001011111010…
…100101010011000000
31222011201102021211200
4103023322211103000
5314142324014102
613244114541200
71326340422564
oct231372452300
958151367750
1020601001152
118811801096
123bab297800
131c34064114
14dd604d6a4
158088d551c
hex4cbea54c0

20601001152 has 84 divisors (see below), whose sum is σ = 59068844016. Its totient is φ = 6864698880.

The previous prime is 20601001129. The next prime is 20601001153. The reversal of 20601001152 is 25110010602.

20601001152 is a `hidden beast` number, since 2 + 0 + 601 + 0 + 0 + 11 + 52 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (20601001153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3217218 + ... + 3223614.

It is an arithmetic number, because the mean of its divisors is an integer number (703200524).

Almost surely, 220601001152 is an apocalyptic number.

It is an amenable number.

20601001152 is an abundant number, since it is smaller than the sum of its proper divisors (38467842864).

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

20601001152 is a wasteful number, since it uses less digits than its factorization.

20601001152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12006 (or 11993 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 20601001152 its reverse (25110010602), we get a palindrome (45711011754).

The spelling of 20601001152 in words is "twenty billion, six hundred one million, one thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 144 192 288 576 5591 6397 11182 12794 16773 19191 22364 25588 33546 38382 44728 50319 51176 57573 67092 76764 89456 100638 102352 115146 134184 153528 178912 201276 204704 230292 268368 307056 357824 402552 409408 460584 536736 614112 805104 921168 1073472 1228224 1610208 1842336 3220416 3684672 35765627 71531254 107296881 143062508 214593762 286125016 321890643 429187524 572250032 643781286 858375048 1144500064 1287562572 1716750096 2289000128 2575125144 3433500192 5150250288 6867000384 10300500576 20601001152