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1688307534430 = 2511223139436439
BaseRepresentation
bin11000100100010110111…
…110001000101001011110
312222101211001111000210121
4120210112332020221132
5210130123212100210
63331333041425154
7232655556155446
oct30442676105136
95871731430717
101688307534430
115a1009653100
1223325693b1ba
13c328c2092aa
145ba00905126
152ddb40996da
hex18916f88a5e

1688307534430 has 96 divisors (see below), whose sum is σ = 3510653529600. Its totient is φ = 583011337920.

The previous prime is 1688307534421. The next prime is 1688307534457. The reversal of 1688307534430 is 344357038861.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3650151 + ... + 4086589.

It is an arithmetic number, because the mean of its divisors is an integer number (36569307600).

Almost surely, 21688307534430 is an apocalyptic number.

1688307534430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1688307534430 is an abundant number, since it is smaller than the sum of its proper divisors (1822345995170).

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

1688307534430 is a wasteful number, since it uses less digits than its factorization.

1688307534430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436630 (or 436619 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 52.

The spelling of 1688307534430 in words is "one trillion, six hundred eighty-eight billion, three hundred seven million, five hundred thirty-four thousand, four hundred thirty".

Divisors: 1 2 5 10 11 22 23 46 55 110 115 121 139 230 242 253 278 506 605 695 1210 1265 1390 1529 2530 2783 3058 3197 5566 6394 7645 13915 15290 15985 16819 27830 31970 33638 35167 70334 84095 168190 175835 351670 386837 436439 773674 872878 1934185 2182195 3868370 4364390 4800829 9601658 10038097 20076194 24004145 48008290 50190485 52809119 60665021 100380970 105618238 110419067 121330042 220838134 264045595 303325105 528091190 552095335 606650210 667315231 1104190670 1214609737 1334630462 1395295483 2429219474 2790590966 3336576155 6073048685 6673152310 6976477415 7340467541 12146097370 13952954830 14680935082 15348250313 30696500626 36702337705 73404675410 76741251565 153482503130 168830753443 337661506886 844153767215 1688307534430