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64941950 = 2524179401
BaseRepresentation
bin1111011110111…
…0111101111110
311112012101121102
43313232331332
5113111120300
610235533102
71415666063
oct367567576
9145171542
1064941950
1133726937
12198ba192
13105ba4b8
1488a6c6a
155a7c0d5
hex3deef7e

64941950 has 48 divisors (see below), whose sum is σ = 125616960. Its totient is φ = 24960000.

The previous prime is 64941941. The next prime is 64941953. The reversal of 64941950 is 5914946.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64941953) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 161750 + ... + 162150.

It is an arithmetic number, because the mean of its divisors is an integer number (2617020).

Almost surely, 264941950 is an apocalyptic number.

64941950 is a deficient number, since it is larger than the sum of its proper divisors (60675010).

64941950 is a wasteful number, since it uses less digits than its factorization.

64941950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533 (or 528 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 64941950 is about 8058.6568359746. The cubic root of 64941950 is about 401.9528462963.

The spelling of 64941950 in words is "sixty-four million, nine hundred forty-one thousand, nine hundred fifty".

Divisors: 1 2 5 10 25 41 50 79 82 158 205 395 401 410 790 802 1025 1975 2005 2050 3239 3950 4010 6478 10025 16195 16441 20050 31679 32390 32882 63358 80975 82205 158395 161950 164410 316790 411025 791975 822050 1298839 1583950 2597678 6494195 12988390 32470975 64941950