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32220609001 = 72256432
BaseRepresentation
bin11110000000011111…
…110111100111101001
310002011111202112020221
4132000133313213221
51011441433442001
622445115250041
72220312441400
oct360037674751
9102144675227
1032220609001
111273476a489
1262b2749921
133066461119
1417b932c637
15c88a671a1
hex7807f79e9

32220609001 has 9 divisors (see below), whose sum is σ = 37482578301. Its totient is φ = 27616587852.

The previous prime is 32220608983. The next prime is 32220609017. The reversal of 32220609001 is 10090602223.

It is a happy number.

The square root of 32220609001 is 179501.

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

It is not a de Polignac number, because 32220609001 - 25 = 32220608969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (32220609401) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1243686 + ... + 1269328.

Almost surely, 232220609001 is an apocalyptic number.

32220609001 is the 179501-st square number.

32220609001 is the 89751-st centered octagonal number.

It is an amenable number.

32220609001 is a deficient number, since it is larger than the sum of its proper divisors (5261969300).

32220609001 is an frugal number, since it uses more digits than its factorization.

32220609001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51300 (or 25650 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Multiplying 32220609001 by its sum of digits (25), we get a square (805515225025 = 8975052).

Multiplying 32220609001 by its product of nonzero digits (1296), we get a square (41757909265296 = 64620362).

The spelling of 32220609001 in words is "thirty-two billion, two hundred twenty million, six hundred nine thousand, one".

Divisors: 1 7 49 25643 179501 1256507 657563449 4602944143 32220609001