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207141540 = 22353793307
BaseRepresentation
bin11000101100010…
…11101010100100
3112102202212202220
430112023222210
5411012012130
632315432340
75063450124
oct1426135244
9472685686
10207141540
11a6a20561
12594556b0
1333bb7a78
141d720c84
15132ba410
hexc58baa4

207141540 has 48 divisors (see below), whose sum is σ = 595678272. Its totient is φ = 53744256.

The previous prime is 207141533. The next prime is 207141551. The reversal of 207141540 is 45141702.

It is a self number, because there is not a number n which added to its sum of digits gives 207141540.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 44434 + ... + 48873.

It is an arithmetic number, because the mean of its divisors is an integer number (12409964).

Almost surely, 2207141540 is an apocalyptic number.

207141540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

207141540 is an abundant number, since it is smaller than the sum of its proper divisors (388536732).

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

207141540 is a wasteful number, since it uses less digits than its factorization.

207141540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93356 (or 93354 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 207141540 is about 14392.4125844141. The cubic root of 207141540 is about 591.6829665108.

The spelling of 207141540 in words is "two hundred seven million, one hundred forty-one thousand, five hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 37 60 74 111 148 185 222 370 444 555 740 1110 2220 93307 186614 279921 373228 466535 559842 933070 1119684 1399605 1866140 2799210 3452359 5598420 6904718 10357077 13809436 17261795 20714154 34523590 41428308 51785385 69047180 103570770 207141540