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2153076240 = 243575324181
BaseRepresentation
bin1000000001010101…
…0101011000010000
312120001101121100110
42000111111120100
513402141414430
6553351521320
7104232563130
oct20025253020
95501347313
102153076240
11a053a0057
12501089240
132840b2513
14165d44ac0
15c904d7b0
hex80555610

2153076240 has 160 divisors (see below), whose sum is σ = 7772288256. Its totient is φ = 482826240.

The previous prime is 2153076229. The next prime is 2153076271. The reversal of 2153076240 is 426703512.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2153076198 and 2153076207.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76950 + ... + 101130.

Almost surely, 22153076240 is an apocalyptic number.

2153076240 is a gapful number since it is divisible by the number (20) 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 2153076240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3886144128).

2153076240 is an abundant number, since it is smaller than the sum of its proper divisors (5619212016).

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

2153076240 is a wasteful number, since it uses less digits than its factorization.

2153076240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24257 (or 24251 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 2153076240 is about 46401.2525693003. The cubic root of 2153076240 is about 1291.2781514742.

Adding to 2153076240 its reverse (426703512), we get a palindrome (2579779752).

The spelling of 2153076240 in words is "two billion, one hundred fifty-three million, seventy-six thousand, two hundred forty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 35 40 42 48 53 56 60 70 80 84 105 106 112 120 140 159 168 210 212 240 265 280 318 336 371 420 424 530 560 636 742 795 840 848 1060 1113 1272 1484 1590 1680 1855 2120 2226 2544 2968 3180 3710 4240 4452 5565 5936 6360 7420 8904 11130 12720 14840 17808 22260 24181 29680 44520 48362 72543 89040 96724 120905 145086 169267 193448 241810 290172 338534 362715 386896 483620 507801 580344 677068 725430 846335 967240 1015602 1160688 1281593 1354136 1450860 1692670 1934480 2031204 2539005 2563186 2708272 2901720 3385340 3844779 4062408 5078010 5126372 5803440 6407965 6770680 7689558 8124816 8971151 10156020 10252744 12815930 13541360 15379116 17942302 19223895 20312040 20505488 25631860 26913453 30758232 35884604 38447790 40624080 44855755 51263720 53826906 61516464 71769208 76895580 89711510 102527440 107653812 134567265 143538416 153791160 179423020 215307624 269134530 307582320 358846040 430615248 538269060 717692080 1076538120 2153076240