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87682348404 = 2232715122710151
BaseRepresentation
bin101000110101001000…
…1100111010101110100
322101022201210210211100
41101222101213111310
52414033140122104
6104140345010100
76222564443550
oct1215221472564
9271281723740
1087682348404
1134205444152
1214bb0783930
1383649098c1
14435b196860
152432b70139
hex146a467574

87682348404 has 144 divisors (see below), whose sum is σ = 256130574336. Its totient is φ = 24774120000.

The previous prime is 87682348393. The next prime is 87682348427. The reversal of 87682348404 is 40484328678.

It is a happy number.

87682348404 is a `hidden beast` number, since 87 + 6 + 82 + 3 + 484 + 0 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8632729 + ... + 8642879.

It is an arithmetic number, because the mean of its divisors is an integer number (1778684544).

Almost surely, 287682348404 is an apocalyptic number.

87682348404 is a gapful number since it is divisible by the number (84) 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 87682348404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128065287168).

87682348404 is an abundant number, since it is smaller than the sum of its proper divisors (168448225932).

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

87682348404 is a wasteful number, since it uses less digits than its factorization.

87682348404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10546 (or 10541 counting only the distinct ones).

The product of its (nonzero) digits is 8257536, while the sum is 54.

The spelling of 87682348404 in words is "eighty-seven billion, six hundred eighty-two million, three hundred forty-eight thousand, four hundred four".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 151 227 252 302 453 454 604 681 906 908 1057 1359 1362 1589 1812 2043 2114 2718 2724 3171 3178 4086 4228 4767 5436 6342 6356 8172 9513 9534 10151 12684 14301 19026 19068 20302 28602 30453 34277 38052 40604 57204 60906 68554 71057 91359 102831 121812 137108 142114 182718 205662 213171 239939 284228 308493 365436 411324 426342 479878 616986 639513 719817 852684 959756 1233972 1279026 1439634 1532801 2159451 2304277 2558052 2879268 3065602 4318902 4598403 4608554 6131204 6912831 8637804 9196806 9217108 10729607 13795209 13825662 16129939 18393612 20738493 21459214 27590418 27651324 32188821 32259878 41476986 42918428 48389817 55180836 64377642 64519756 82953972 96566463 96779634 128755284 145169451 193132926 193559268 290338902 347945827 386265852 580677804 695891654 1043837481 1391783308 2087674962 2435620789 3131512443 4175349924 4871241578 6263024886 7306862367 9742483156 12526049772 14613724734 21920587101 29227449468 43841174202 87682348404