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909064995601 = 721362072
BaseRepresentation
bin11010011101010000111…
…11110000001100010001
310012220110022011120110011
431032220133300030101
5104343231114324401
61533341345434521
7122451322653100
oct15165037601421
93186408146404
10909064995601
113205945441a4
1212822403ba41
1367955845129
1431ddb2ba037
15189a8296451
hexd3a87f0311

909064995601 has 9 divisors (see below), whose sum is σ = 1057491534249. Its totient is φ = 779192846964.

The previous prime is 909064995569. The next prime is 909064995611. The reversal of 909064995601 is 106599460909.

The square root of 909064995601 is 953449.

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

It is not a de Polignac number, because 909064995601 - 25 = 909064995569 is a prime.

It is a super-2 number, since 2×9090649956012 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (909064995611) 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 8 ways as a sum of consecutive naturals, for example, 6606040 + ... + 6742246.

It is an arithmetic number, because the mean of its divisors is an integer number (117499059361).

Almost surely, 2909064995601 is an apocalyptic number.

909064995601 is the 953449-th square number.

909064995601 is the 476725-th centered octagonal number.

It is an amenable number.

909064995601 is a deficient number, since it is larger than the sum of its proper divisors (148426538648).

909064995601 is an frugal number, since it uses more digits than its factorization.

909064995601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272428 (or 136214 counting only the distinct ones).

The product of its (nonzero) digits is 4723920, while the sum is 58.

The spelling of 909064995601 in words is "nine hundred nine billion, sixty-four million, nine hundred ninety-five thousand, six hundred one".

Divisors: 1 7 49 136207 953449 6674143 18552346849 129866427943 909064995601