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207032540 = 2251113191379
BaseRepresentation
bin11000101011100…
…01000011011100
3112102120100020212
430111301003130
5411000020130
632313231552
75062514261
oct1425610334
9472510225
10207032540
11a6956680
12594025b8
1333b7a280
141d6d3268
1513297e95
hexc5710dc

207032540 has 96 divisors (see below), whose sum is σ = 514805760. Its totient is φ = 68947200.

The previous prime is 207032533. The next prime is 207032543. The reversal of 207032540 is 45230702.

207032540 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207032543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 546071 + ... + 546449.

It is an arithmetic number, because the mean of its divisors is an integer number (5362560).

Almost surely, 2207032540 is an apocalyptic number.

207032540 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 207032540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257402880).

207032540 is an abundant number, since it is smaller than the sum of its proper divisors (307773220).

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

207032540 is a wasteful number, since it uses less digits than its factorization.

207032540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603 (or 601 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 207032540 is about 14388.6253686723. The cubic root of 207032540 is about 591.5791650891.

The spelling of 207032540 in words is "two hundred seven million, thirty-two thousand, five hundred forty".

Divisors: 1 2 4 5 10 11 13 20 22 26 44 52 55 65 110 130 143 191 220 260 286 379 382 572 715 758 764 955 1430 1516 1895 1910 2101 2483 2860 3790 3820 4169 4202 4927 4966 7580 8338 8404 9854 9932 10505 12415 16676 19708 20845 21010 24635 24830 27313 41690 42020 49270 49660 54197 54626 72389 83380 98540 108394 109252 136565 144778 216788 270985 273130 289556 361945 541970 546260 723890 796279 941057 1083940 1447780 1592558 1882114 3185116 3764228 3981395 4705285 7962790 9410570 10351627 15925580 18821140 20703254 41406508 51758135 103516270 207032540