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2681669120 = 29513194241
BaseRepresentation
bin1001111111010111…
…0000011000000000
320220220000220110112
42133311300120000
520443001402440
61122033250452
7123311545214
oct23765603000
96826026415
102681669120
111156806779
1262a103a28
13339768c80
141b6220944
1510a663965
hex9fd70600

2681669120 has 160 divisors (see below), whose sum is σ = 7290470880. Its totient is φ = 937820160.

The previous prime is 2681669093. The next prime is 2681669149. The reversal of 2681669120 is 219661862.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (160).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 630200 + ... + 634440.

It is an arithmetic number, because the mean of its divisors is an integer number (45565443).

Almost surely, 22681669120 is an apocalyptic number.

2681669120 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 2681669120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3645235440).

2681669120 is an abundant number, since it is smaller than the sum of its proper divisors (4608801760).

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

2681669120 is a wasteful number, since it uses less digits than its factorization.

2681669120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4296 (or 4280 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 2681669120 is about 51784.8348457345. The cubic root of 2681669120 is about 1389.3182171359.

The spelling of 2681669120 in words is "two billion, six hundred eighty-one million, six hundred sixty-nine thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 13 16 19 20 26 32 38 40 52 64 65 76 80 95 104 128 130 152 160 190 208 247 256 260 304 320 380 416 494 512 520 608 640 760 832 988 1040 1216 1235 1280 1520 1664 1976 2080 2432 2470 2560 3040 3328 3952 4160 4241 4864 4940 6080 6656 7904 8320 8482 9728 9880 12160 15808 16640 16964 19760 21205 24320 31616 33280 33928 39520 42410 48640 55133 63232 67856 79040 80579 84820 110266 126464 135712 158080 161158 169640 220532 271424 275665 316160 322316 339280 402895 441064 542848 551330 632320 644632 678560 805790 882128 1047527 1085696 1102660 1289264 1357120 1611580 1764256 2095054 2171392 2205320 2578528 2714240 3223160 3528512 4190108 4410640 5157056 5237635 5428480 6446320 7057024 8380216 8821280 10314112 10475270 10856960 12892640 14114048 16760432 17642560 20628224 20950540 25785280 28228096 33520864 35285120 41256448 41901080 51570560 67041728 70570240 83802160 103141120 134083456 141140480 167604320 206282240 268166912 335208640 536333824 670417280 1340834560 2681669120