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72890980104 = 233172310617321
BaseRepresentation
bin100001111100010100…
…1000001011100001000
320222010220020110000210
41003320221001130020
52143240042330404
653252522401120
75160210052035
oct1037051013410
9228126213023
1072890980104
1128a05070228
12121630601a0
136b4837a977
14375696038c
151d6931c689
hex10f8a41708

72890980104 has 128 divisors (see below), whose sum is σ = 201552986880. Its totient is φ = 21849907200.

The previous prime is 72890980051. The next prime is 72890980111. The reversal of 72890980104 is 40108909827.

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, 9952764 + ... + 9960084.

It is an arithmetic number, because the mean of its divisors is an integer number (1574632710).

Almost surely, 272890980104 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 72890980104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100776493440).

72890980104 is an abundant number, since it is smaller than the sum of its proper divisors (128662006776).

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

72890980104 is a wasteful number, since it uses less digits than its factorization.

72890980104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8431 (or 8427 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 48.

The spelling of 72890980104 in words is "seventy-two billion, eight hundred ninety million, nine hundred eighty thousand, one hundred four".

Divisors: 1 2 3 4 6 8 12 17 23 24 34 46 51 68 69 92 102 136 138 184 204 276 391 408 552 782 1061 1173 1564 2122 2346 3128 3183 4244 4692 6366 7321 8488 9384 12732 14642 18037 21963 24403 25464 29284 36074 43926 48806 54111 58568 72148 73209 87852 97612 108222 124457 144296 146418 168383 175704 195224 216444 248914 292836 336766 373371 414851 432888 497828 505149 585672 673532 746742 829702 995656 1010298 1244553 1347064 1493484 1659404 2020596 2489106 2862511 2986968 3318808 4041192 4978212 5725022 7767581 8587533 9956424 11450044 15535162 17175066 22900088 23302743 31070324 34350132 46605486 62140648 68700264 93210972 132048877 178654363 186421944 264097754 357308726 396146631 528195508 535963089 714617452 792293262 1056391016 1071926178 1429234904 1584586524 2143852356 3037124171 3169173048 4287704712 6074248342 9111372513 12148496684 18222745026 24296993368 36445490052 72890980104