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6720927466653 = 3217532296136097
BaseRepresentation
bin110000111001101011001…
…1111101000010010011101
3212210111212222202101221200
41201303112133220102131
51340103424412413103
622143315040350113
71262366563605051
oct141632637502235
925714788671850
106720927466653
112161369382534
12906689015339
13399a1c396baa
1419341a645c61
15b9c604110a3
hex61cd67e849d

6720927466653 has 48 divisors (see below), whose sum is σ = 10473756439536. Its totient is φ = 4137190686720.

The previous prime is 6720927466607. The next prime is 6720927466711. The reversal of 6720927466653 is 3566647290276.

It can be written as a sum of positive squares in 8 ways, for example, as 200652035364 + 6520275431289 = 447942^2 + 2553483^2 .

It is not a de Polignac number, because 6720927466653 - 220 = 6720926418077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6720927466153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 186172701 + ... + 186208797.

It is an arithmetic number, because the mean of its divisors is an integer number (218203259157).

Almost surely, 26720927466653 is an apocalyptic number.

It is an amenable number.

6720927466653 is a deficient number, since it is larger than the sum of its proper divisors (3752828972883).

6720927466653 is a wasteful number, since it uses less digits than its factorization.

6720927466653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59134 (or 59131 counting only the distinct ones).

The product of its (nonzero) digits is 137168640, while the sum is 63.

The spelling of 6720927466653 in words is "six trillion, seven hundred twenty billion, nine hundred twenty-seven million, four hundred sixty-six thousand, six hundred fifty-three".

Divisors: 1 3 9 17 51 53 153 159 477 901 2703 8109 22961 36097 68883 108291 206649 324873 390337 613649 1171011 1216933 1840947 1913141 3513033 3650799 5522841 5739423 10952397 17218269 20687861 32523397 62063583 97570191 186190749 292710573 828823217 2486469651 7459408953 14089994689 42269984067 43927630501 126809952201 131782891503 395348674509 746769718517 2240309155551 6720927466653