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64550741242 = 21317538333199
BaseRepresentation
bin111100000111100001…
…100010010011111010
320011121122121102011011
4330013201202103322
52024144442204432
645353150224134
74443425150611
oct740741422372
9204548542134
1064550741242
1125415235339
1210615ab504a
1361194bb5a0
1431a500a878
151a2c015847
hexf078624fa

64550741242 has 64 divisors (see below), whose sum is σ = 113849971200. Its totient is φ = 27178804224.

The previous prime is 64550741209. The next prime is 64550741249. The reversal of 64550741242 is 24214705546.

It is a happy number.

64550741242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 64550741195 and 64550741204.

It is not an unprimeable number, because it can be changed into a prime (64550741249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1927759 + ... + 1960957.

It is an arithmetic number, because the mean of its divisors is an integer number (1778905800).

Almost surely, 264550741242 is an apocalyptic number.

64550741242 is a deficient number, since it is larger than the sum of its proper divisors (49299229958).

64550741242 is a wasteful number, since it uses less digits than its factorization.

64550741242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33367.

The product of its (nonzero) digits is 268800, while the sum is 40.

The spelling of 64550741242 in words is "sixty-four billion, five hundred fifty million, seven hundred forty-one thousand, two hundred forty-two".

Divisors: 1 2 13 17 26 34 53 83 106 166 221 442 689 901 1079 1378 1411 1802 2158 2822 4399 8798 11713 18343 23426 33199 36686 57187 66398 74783 114374 149566 431587 564383 863174 972179 1128766 1759547 1944358 2755517 3519094 5511034 7336979 14673958 22874111 29912299 35821721 45748222 46843789 59824598 71643442 93687578 146042401 292084802 388859887 608969257 777719774 1217938514 1898551213 2482720817 3797102426 4965441634 32275370621 64550741242