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200514640 = 2457931727
BaseRepresentation
bin10111111001110…
…01110001010000
3111222022012101011
423330321301100
5402312432030
631521420304
74653226534
oct1374716120
9458265334
10200514640
11a3204687
125719a694
1332707621
141c8b7bc4
151290bb2a
hexbf39c50

200514640 has 40 divisors (see below), whose sum is σ = 472112640. Its totient is φ = 79188096.

The previous prime is 200514631. The next prime is 200514653. The reversal of 200514640 is 46415002.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×2005146402 = 80412241708659200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9544 + ... + 22183.

It is an arithmetic number, because the mean of its divisors is an integer number (11802816).

Almost surely, 2200514640 is an apocalyptic number.

200514640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200514640 is an abundant number, since it is smaller than the sum of its proper divisors (271598000).

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

200514640 is a wasteful number, since it uses less digits than its factorization.

200514640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31819 (or 31813 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 200514640 is about 14160.3192054417. The cubic root of 200514640 is about 585.3047235091.

Adding to 200514640 its reverse (46415002), we get a palindrome (246929642).

The spelling of 200514640 in words is "two hundred million, five hundred fourteen thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 79 80 158 316 395 632 790 1264 1580 3160 6320 31727 63454 126908 158635 253816 317270 507632 634540 1269080 2506433 2538160 5012866 10025732 12532165 20051464 25064330 40102928 50128660 100257320 200514640