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65223020080 = 2451747958103
BaseRepresentation
bin111100101111100110…
…000100111000110000
320020100111121201100101
4330233212010320300
52032034043120310
645544003402144
74466200344331
oct745746047060
9206314551311
1065223020080
112572a770389
1210783083354
1361c587300a
14322a40a288
151a6b05e43a
hexf2f984e30

65223020080 has 40 divisors (see below), whose sum is σ = 160563732192. Its totient is φ = 24554548224.

The previous prime is 65223020033. The next prime is 65223020081. The reversal of 65223020080 is 8002032256.

65223020080 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (65223020081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23977692 + ... + 23980411.

Almost surely, 265223020080 is an apocalyptic number.

It is an amenable number.

65223020080 is an abundant number, since it is smaller than the sum of its proper divisors (95340712112).

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

65223020080 is a wasteful number, since it uses less digits than its factorization.

65223020080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47958133 (or 47958127 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The spelling of 65223020080 in words is "sixty-five billion, two hundred twenty-three million, twenty thousand, eighty".

Divisors: 1 2 4 5 8 10 16 17 20 34 40 68 80 85 136 170 272 340 680 1360 47958103 95916206 191832412 239790515 383664824 479581030 767329648 815287751 959162060 1630575502 1918324120 3261151004 3836648240 4076438755 6522302008 8152877510 13044604016 16305755020 32611510040 65223020080