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230878880 = 25519173439
BaseRepresentation
bin11011100001011…
…10111010100000
3121002102212021122
431300232322200
5433101111010
634524311412
75502303161
oct1560567240
9532385248
10230878880
111093637a1
12653a2568
1338aa932b
142293d768
1515408855
hexdc2eea0

230878880 has 96 divisors (see below), whose sum is σ = 578793600. Its totient is φ = 86787072.

The previous prime is 230878877. The next prime is 230878883. The reversal of 230878880 is 88878032.

230878880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (230878877) and next prime (230878883).

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (230878883) 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, 525701 + ... + 526139.

It is an arithmetic number, because the mean of its divisors is an integer number (6029100).

Almost surely, 2230878880 is an apocalyptic number.

230878880 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 230878880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289396800).

230878880 is an abundant number, since it is smaller than the sum of its proper divisors (347914720).

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

230878880 is a wasteful number, since it uses less digits than its factorization.

230878880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646 (or 638 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 44.

The square root of 230878880 is about 15194.6990756645. The cubic root of 230878880 is about 613.4719860865.

The spelling of 230878880 in words is "two hundred thirty million, eight hundred seventy-eight thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 19 20 32 38 40 76 80 95 152 160 173 190 304 346 380 439 608 692 760 865 878 1384 1520 1730 1756 2195 2768 3040 3287 3460 3512 4390 5536 6574 6920 7024 8341 8780 13148 13840 14048 16435 16682 17560 26296 27680 32870 33364 35120 41705 52592 65740 66728 70240 75947 83410 105184 131480 133456 151894 166820 262960 266912 303788 333640 379735 525920 607576 667280 759470 1215152 1334560 1442993 1518940 2430304 2885986 3037880 5771972 6075760 7214965 11543944 12151520 14429930 23087888 28859860 46175776 57719720 115439440 230878880