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6906956481 = 335911513767
BaseRepresentation
bin1100110111010111…
…11100101011000001
3122211100122202002000
412123223330223001
5103121140101411
63101212014213
7333106106235
oct63353745301
918740582060
106906956481
112a248846a7
121409161369
13860c598c9
1449745a5c5
152a658a956
hex19bafcac1

6906956481 has 32 divisors (see below), whose sum is σ = 10417766400. Its totient is φ = 4521459600.

The previous prime is 6906956461. The next prime is 6906956509. The reversal of 6906956481 is 1846596096.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-6906956481 is a prime.

It is a super-2 number, since 2×69069564812 = 95412095660855806722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (6906956461) 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, 1831660 + ... + 1835426.

It is an arithmetic number, because the mean of its divisors is an integer number (325555200).

Almost surely, 26906956481 is an apocalyptic number.

It is an amenable number.

6906956481 is a deficient number, since it is larger than the sum of its proper divisors (3510809919).

6906956481 is a wasteful number, since it uses less digits than its factorization.

6906956481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4986 (or 4980 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The square root of 6906956481 is about 83108.1011755172. The cubic root of 6906956481 is about 1904.4178343851.

The spelling of 6906956481 in words is "six billion, nine hundred six million, nine hundred fifty-six thousand, four hundred eighty-one".

Divisors: 1 3 9 27 59 177 531 1151 1593 3453 3767 10359 11301 31077 33903 67909 101709 203727 222253 611181 666759 1833543 2000277 4335817 6000831 13007451 39022353 117067059 255813203 767439609 2302318827 6906956481