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69403794916 = 2215728392
BaseRepresentation
bin100000010100011001…
…0011101110111100100
320122010212111002020211
41000220302131313210
52114114332414131
651514512105204
75004614344261
oct1005062356744
9218125432224
1069403794916
11274856a63a5
121154b235204
136710a7a191
14350577a268
151c130e25b1
hex1028c9dde4

69403794916 has 27 divisors (see below), whose sum is σ = 122381042889. Its totient is φ = 34439768688.

The previous prime is 69403794899. The next prime is 69403794919. The reversal of 69403794916 is 61949730496.

The square root of 69403794916 is 263446.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 20343316900 + 49060478016 = 142630^2 + 221496^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69403794919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 82721625 + ... + 82722463.

Almost surely, 269403794916 is an apocalyptic number.

69403794916 is the 263446-th square number.

It is an amenable number.

69403794916 is a deficient number, since it is larger than the sum of its proper divisors (52977247973).

69403794916 is an frugal number, since it uses more digits than its factorization.

69403794916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1996 (or 998 counting only the distinct ones).

The product of its (nonzero) digits is 8817984, while the sum is 58.

The spelling of 69403794916 in words is "sixty-nine billion, four hundred three million, seven hundred ninety-four thousand, nine hundred sixteen".

Divisors: 1 2 4 157 314 628 839 1678 3356 24649 49298 98596 131723 263446 526892 703921 1407842 2815684 20680511 41361022 82722044 110515597 221031194 442062388 17350948729 34701897458 69403794916