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66252202315 = 5138397126601
BaseRepresentation
bin111101101100111100…
…000110000101001011
320100000020012120221221
4331230330012011023
52041141030433230
650234050342511
74533535266535
oct755474060513
9210006176857
1066252202315
1126108706212
1210a0b88aa37
13632ab59ba0
1432c6d92855
151acb5a727a
hexf6cf0614b

66252202315 has 32 divisors (see below), whose sum is σ = 87543763776. Its totient is φ = 47836569600.

The previous prime is 66252202267. The next prime is 66252202319. The reversal of 66252202315 is 51320225266.

It is not a de Polignac number, because 66252202315 - 217 = 66252071243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66252202319) 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 31 ways as a sum of consecutive naturals, for example, 460015 + ... + 586615.

It is an arithmetic number, because the mean of its divisors is an integer number (2735742618).

Almost surely, 266252202315 is an apocalyptic number.

66252202315 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

66252202315 is a deficient number, since it is larger than the sum of its proper divisors (21291561461).

66252202315 is a wasteful number, since it uses less digits than its factorization.

66252202315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126799.

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 66252202315 in words is "sixty-six billion, two hundred fifty-two million, two hundred two thousand, three hundred fifteen".

Divisors: 1 5 13 65 83 97 415 485 1079 1261 5395 6305 8051 40255 104663 126601 523315 633005 1645813 8229065 10507883 12280297 52539415 61401485 136602479 159643861 683012395 798219305 1019264651 5096323255 13250440463 66252202315