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23213701 = 722272087
BaseRepresentation
bin101100010001…
…1011010000101
31121200101012201
41120203122011
521420314301
62145314501
7401212300
oct130433205
947611181
1023213701
1112115885
127935a31
134a6a124
143123b37
152088201
hex1623685

23213701 has 12 divisors (see below), whose sum is σ = 27135648. Its totient is φ = 19800312.

The previous prime is 23213681. The next prime is 23213711. The reversal of 23213701 is 10731232.

23213701 = 2002 + 2012 + ... + 4262.

It is not a de Polignac number, because 23213701 - 25 = 23213669 is a prime.

It is a super-3 number, since 3×232137013 (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23213711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10080 + ... + 12166.

It is an arithmetic number, because the mean of its divisors is an integer number (2261304).

Almost surely, 223213701 is an apocalyptic number.

It is an amenable number.

23213701 is a deficient number, since it is larger than the sum of its proper divisors (3921947).

23213701 is a wasteful number, since it uses less digits than its factorization.

23213701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2328 (or 2321 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 23213701 is about 4818.0598792460. The cubic root of 23213701 is about 285.2647626821.

Adding to 23213701 its reverse (10731232), we get a palindrome (33944933).

The spelling of 23213701 in words is "twenty-three million, two hundred thirteen thousand, seven hundred one".

Divisors: 1 7 49 227 1589 2087 11123 14609 102263 473749 3316243 23213701