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542871680 = 2751371919
BaseRepresentation
bin100000010110111…
…001000010000000
31101211111201221112
4200112321002000
52102433343210
6125511342452
716311222161
oct4026710200
91354451845
10542871680
1125948958a
12131981a28
1388615a60
1452155768
15329d5d05
hex205b9080

542871680 has 128 divisors (see below), whose sum is σ = 1418860800. Its totient is φ = 197406720.

The previous prime is 542871649. The next prime is 542871683. The reversal of 542871680 is 86178245.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542871683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 590261 + ... + 591179.

It is an arithmetic number, because the mean of its divisors is an integer number (11084850).

Almost surely, 2542871680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 542871680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (709430400).

542871680 is an abundant number, since it is smaller than the sum of its proper divisors (875989120).

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

542871680 is a wasteful number, since it uses less digits than its factorization.

542871680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022 (or 1010 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 542871680 is about 23299.6068636361. The cubic root of 542871680 is about 815.7662408719.

The spelling of 542871680 in words is "five hundred forty-two million, eight hundred seventy-one thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 13 16 20 26 32 40 52 64 65 71 80 104 128 130 142 160 208 260 284 320 355 416 520 568 640 710 832 919 923 1040 1136 1420 1664 1838 1846 2080 2272 2840 3676 3692 4160 4544 4595 4615 5680 7352 7384 8320 9088 9190 9230 11360 11947 14704 14768 18380 18460 22720 23894 29408 29536 36760 36920 45440 47788 58816 59072 59735 65249 73520 73840 95576 117632 118144 119470 130498 147040 147680 191152 238940 260996 294080 295360 326245 382304 477880 521992 588160 590720 652490 764608 848237 955760 1043984 1304980 1529216 1696474 1911520 2087968 2609960 3392948 3823040 4175936 4241185 5219920 6785896 7646080 8351872 8482370 10439840 13571792 16964740 20879680 27143584 33929480 41759360 54287168 67858960 108574336 135717920 271435840 542871680