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64217400103 = 29282639241
BaseRepresentation
bin111011110011101001…
…111100001100100111
320010202102100221002001
4323303221330030213
52023004123300403
645300121430131
74432236615553
oct736351741447
9203672327061
1064217400103
112526405919a
121054233b347
136095418acc
143172a38863
151a0cb1cc1d
hexef3a7c327

64217400103 has 12 divisors (see below), whose sum is σ = 66523398448. Its totient is φ = 61988794560.

The previous prime is 64217400101. The next prime is 64217400109. The reversal of 64217400103 is 30100471246.

It is not a de Polignac number, because 64217400103 - 21 = 64217400101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64217400101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6944563 + ... + 6953803.

Almost surely, 264217400103 is an apocalyptic number.

64217400103 is a deficient number, since it is larger than the sum of its proper divisors (2305998345).

64217400103 is an equidigital number, since it uses as much as digits as its factorization.

64217400103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17562 (or 17533 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

Adding to 64217400103 its reverse (30100471246), we get a palindrome (94317871349).

The spelling of 64217400103 in words is "sixty-four billion, two hundred seventeen million, four hundred thousand, one hundred three".

Divisors: 1 29 841 8263 9241 239627 267989 6949183 7771681 76358383 2214393107 64217400103