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2153318076 = 22327131076143
BaseRepresentation
bin1000000001011001…
…0000011010111100
312120001211220002100
42000112100122330
513402222134301
6553401025100
7104234621160
oct20026203274
95501756070
102153318076
11a05545818
12501185190
13284168610
14165da8ca0
15c909a286
hex805906bc

2153318076 has 144 divisors (see below), whose sum is σ = 6762921984. Its totient is φ = 562508928.

The previous prime is 2153318071. The next prime is 2153318087. The reversal of 2153318076 is 6708133512.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2153318076.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153318071) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 347461 + ... + 353603.

It is an arithmetic number, because the mean of its divisors is an integer number (46964736).

Almost surely, 22153318076 is an apocalyptic number.

2153318076 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2153318076, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3381460992).

2153318076 is an abundant number, since it is smaller than the sum of its proper divisors (4609603908).

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

2153318076 is a wasteful number, since it uses less digits than its factorization.

2153318076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6280 (or 6275 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 2153318076 is about 46403.8584171618. The cubic root of 2153318076 is about 1291.3264956133.

The spelling of 2153318076 in words is "two billion, one hundred fifty-three million, three hundred eighteen thousand, seventy-six".

Divisors: 1 2 3 4 6 7 9 12 13 14 18 21 26 28 36 39 42 52 63 78 84 91 107 117 126 156 182 214 234 252 273 321 364 428 468 546 642 749 819 963 1092 1284 1391 1498 1638 1926 2247 2782 2996 3276 3852 4173 4494 5564 6143 6741 8346 8988 9737 12286 12519 13482 16692 18429 19474 24572 25038 26964 29211 36858 38948 43001 50076 55287 58422 73716 79859 86002 87633 110574 116844 129003 159718 172004 175266 221148 239577 258006 319436 350532 387009 479154 516012 559013 657301 718731 774018 958308 1118026 1314602 1437462 1548036 1677039 1971903 2236052 2629204 2874924 3354078 3943806 4601107 5031117 5915709 6708156 7887612 8544913 9202214 10062234 11831418 13803321 17089826 18404428 20124468 23662836 25634739 27606642 34179652 41409963 51269478 55213284 59814391 76904217 82819926 102538956 119628782 153808434 165639852 179443173 239257564 307616868 358886346 538329519 717772692 1076659038 2153318076