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139570680 = 233517312207
BaseRepresentation
bin10000101000110…
…10110111111000
3100201121220222110
420110122313320
5241212230210
621503252320
73313221414
oct1024326770
9321556873
10139570680
1171869577
123a8aa0a0
1322bb9b02
1414771d44
15c3be420
hex851adf8

139570680 has 128 divisors (see below), whose sum is σ = 457850880. Its totient is φ = 33884160.

The previous prime is 139570679. The next prime is 139570709. The reversal of 139570680 is 86075931.

139570680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 62137 + ... + 64343.

It is an arithmetic number, because the mean of its divisors is an integer number (3576960).

Almost surely, 2139570680 is an apocalyptic number.

139570680 is a gapful number since it is divisible by the number (10) 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 139570680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228925440).

139570680 is an abundant number, since it is smaller than the sum of its proper divisors (318280200).

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

139570680 is a wasteful number, since it uses less digits than its factorization.

139570680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2269 (or 2265 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 139570680 is about 11814.0035551036. The cubic root of 139570680 is about 518.7180949072.

The spelling of 139570680 in words is "one hundred thirty-nine million, five hundred seventy thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 17 20 24 30 31 34 40 51 60 62 68 85 93 102 120 124 136 155 170 186 204 248 255 310 340 372 408 465 510 527 620 680 744 930 1020 1054 1240 1581 1860 2040 2108 2207 2635 3162 3720 4216 4414 5270 6324 6621 7905 8828 10540 11035 12648 13242 15810 17656 21080 22070 26484 31620 33105 37519 44140 52968 63240 66210 68417 75038 88280 112557 132420 136834 150076 187595 205251 225114 264840 273668 300152 342085 375190 410502 450228 547336 562785 684170 750380 821004 900456 1026255 1125570 1163089 1368340 1500760 1642008 2052510 2251140 2326178 2736680 3489267 4105020 4502280 4652356 5815445 6978534 8210040 9304712 11630890 13957068 17446335 23261780 27914136 34892670 46523560 69785340 139570680