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230780389180 = 225114159433651
BaseRepresentation
bin1101011011101110010…
…1010100011100111100
3211001200111000110120111
43112323211110130330
512240114234423210
6254004040355404
722446644640655
oct3267345243474
9731614013514
10230780389180
1189967571170
1238887a75b64
13189bb28bc03
14b25402c52c
15600a84e88a
hex35bb95473c

230780389180 has 96 divisors (see below), whose sum is σ = 550772732160. Its totient is φ = 80485440000.

The previous prime is 230780389061. The next prime is 230780389309. The reversal of 230780389180 is 81983087032.

It is a super-2 number, since 2×2307803891802 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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, 315355 + ... + 749005.

It is an arithmetic number, because the mean of its divisors is an integer number (5737215960).

Almost surely, 2230780389180 is an apocalyptic number.

230780389180 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 230780389180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275386366080).

230780389180 is an abundant number, since it is smaller than the sum of its proper divisors (319992342980).

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

230780389180 is a wasteful number, since it uses less digits than its factorization.

230780389180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433771 (or 433769 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 49.

The spelling of 230780389180 in words is "two hundred thirty billion, seven hundred eighty million, three hundred eighty-nine thousand, one hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 41 44 55 59 82 110 118 164 205 220 236 295 410 451 590 649 820 902 1180 1298 1804 2255 2419 2596 3245 4510 4838 6490 9020 9676 12095 12980 24190 26609 48380 53218 106436 133045 266090 433651 532180 867302 1734604 2168255 4336510 4770161 8673020 9540322 17779691 19080644 23850805 25585409 35559382 47701610 51170818 71118764 88898455 95403220 102341636 127927045 177796910 195576601 255854090 281439499 355593820 391153202 511708180 562878998 782306404 977883005 1049001769 1125757996 1407197495 1955766010 2098003538 2814394990 3911532020 4196007076 5245008845 5628789980 10490017690 11539019459 20980035380 23078038918 46156077836 57695097295 115390194590 230780389180