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16764041268 = 22321336239887
BaseRepresentation
bin11111001110011011…
…01111100000110100
31121021022111112101100
433213031233200310
5233313043310033
611411251330100
71132266666612
oct174715574064
947238445340
1016764041268
117122956367
1232ba2b0930
131772158b60
14b5061a6b2
15681b18513
hex3e736f834

16764041268 has 72 divisors (see below), whose sum is σ = 45652658688. Its totient is φ = 5156221248.

The previous prime is 16764041267. The next prime is 16764041293. The reversal of 16764041268 is 86214046761.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16764041267) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1690621 + ... + 1700507.

It is an arithmetic number, because the mean of its divisors is an integer number (634064704).

Almost surely, 216764041268 is an apocalyptic number.

16764041268 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16764041268 is an abundant number, since it is smaller than the sum of its proper divisors (28888617420).

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

16764041268 is a wasteful number, since it uses less digits than its factorization.

16764041268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13533 (or 13528 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 16764041268 in words is "sixteen billion, seven hundred sixty-four million, forty-one thousand, two hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 13 18 26 36 39 52 78 117 156 234 468 3623 7246 9887 10869 14492 19774 21738 29661 32607 39548 43476 47099 59322 65214 88983 94198 118644 128531 130428 141297 177966 188396 257062 282594 355932 385593 423891 514124 565188 771186 847782 1156779 1542372 1695564 2313558 4627116 35820601 71641202 107461803 143282404 214923606 322385409 429847212 465667813 644770818 931335626 1289541636 1397003439 1862671252 2794006878 4191010317 5588013756 8382020634 16764041268