Search a number
-
+
107739540 = 2232517137257
BaseRepresentation
bin1100110101111…
…11100110010100
321111201201212100
412122333212110
5210040131130
614405122100
72445525306
oct632774624
9244651770
10107739540
11558a8347
12300b9330
131942350c
1410447976
1596d2c60
hex66bf994

107739540 has 144 divisors (see below), whose sum is σ = 349916112. Its totient is φ = 26738688.

The previous prime is 107739529. The next prime is 107739547. The reversal of 107739540 is 45937701.

It is a happy number.

107739540 is a `hidden beast` number, since 10 + 77 + 39 + 540 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 20466576 + 87272964 = 4524^2 + 9342^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 107739495 and 107739504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107739547) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 419092 + ... + 419348.

It is an arithmetic number, because the mean of its divisors is an integer number (2429973).

Almost surely, 2107739540 is an apocalyptic number.

107739540 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 107739540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174958056).

107739540 is an abundant number, since it is smaller than the sum of its proper divisors (242176572).

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

107739540 is a wasteful number, since it uses less digits than its factorization.

107739540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426 (or 421 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 107739540 is about 10379.7658933138. The cubic root of 107739540 is about 475.8371792057.

The spelling of 107739540 in words is "one hundred seven million, seven hundred thirty-nine thousand, five hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 17 18 20 30 34 36 45 51 60 68 85 90 102 137 153 170 180 204 255 257 274 306 340 411 510 514 548 612 685 765 771 822 1020 1028 1233 1285 1370 1530 1542 1644 2055 2313 2329 2466 2570 2740 3060 3084 3855 4110 4369 4626 4658 4932 5140 6165 6987 7710 8220 8738 9252 9316 11565 11645 12330 13107 13974 15420 17476 20961 21845 23130 23290 24660 26214 27948 34935 35209 39321 41922 43690 46260 46580 52428 65535 69870 70418 78642 83844 87380 104805 105627 131070 139740 140836 157284 176045 196605 209610 211254 262140 316881 352090 393210 419220 422508 528135 598553 633762 704180 786420 1056270 1197106 1267524 1584405 1795659 2112540 2394212 2992765 3168810 3591318 5386977 5985530 6337620 7182636 8978295 10773954 11971060 17956590 21547908 26934885 35913180 53869770 107739540