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64170980401 = 1121756355411
BaseRepresentation
bin111011110000111000…
…110111010000110001
320010122012000120012211
4323300320313100301
52022410232333101
645251342452121
74431134222263
oct736070672061
9203565016184
1064170980401
112523a933400
121052a894041
136088915228
14316a7d3b33
151a089edc51
hexef0e37431

64170980401 has 24 divisors (see below), whose sum is σ = 74818168992. Its totient is φ = 54807139200.

The previous prime is 64170980369. The next prime is 64170980407. The reversal of 64170980401 is 10408907146.

It is not a de Polignac number, because 64170980401 - 25 = 64170980369 is a prime.

It is a super-2 number, since 2×641709804012 (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64170980407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1130386 + ... + 1185796.

It is an arithmetic number, because the mean of its divisors is an integer number (3117423708).

Almost surely, 264170980401 is an apocalyptic number.

It is an amenable number.

64170980401 is a deficient number, since it is larger than the sum of its proper divisors (10647188591).

64170980401 is a wasteful number, since it uses less digits than its factorization.

64170980401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56013 (or 56002 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The spelling of 64170980401 in words is "sixty-four billion, one hundred seventy million, nine hundred eighty thousand, four hundred one".

Divisors: 1 11 17 121 187 563 2057 6193 9571 55411 68123 105281 609521 941987 1158091 6704731 10361857 31196393 113980427 343160323 530338681 3774763553 5833725491 64170980401