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23221201401 = 323119827231
BaseRepresentation
bin10101101000000101…
…110110100111111001
32012221022210020212100
4111220011312213321
5340024111421101
614400114534013
71451304645426
oct255005664771
965838706770
1023221201401
119936843342
124600897309
132260b5a678
1411a402cd4d
1590d955e86
hex5681769f9

23221201401 has 12 divisors (see below), whose sum is σ = 33552529920. Its totient is φ = 15475818840.

The previous prime is 23221201379. The next prime is 23221201427. The reversal of 23221201401 is 10410212232.

It is a happy number.

23221201401 is a `hidden beast` number, since 23 + 221 + 20 + 1 + 401 = 666.

It is not a de Polignac number, because 23221201401 - 27 = 23221201273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23221201301) 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 11 ways as a sum of consecutive naturals, for example, 385545 + ... + 441686.

It is an arithmetic number, because the mean of its divisors is an integer number (2796044160).

Almost surely, 223221201401 is an apocalyptic number.

It is an amenable number.

23221201401 is a deficient number, since it is larger than the sum of its proper divisors (10331328519).

23221201401 is a wasteful number, since it uses less digits than its factorization.

23221201401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830356 (or 830353 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 23221201401 its reverse (10410212232), we get a palindrome (33631413633).

The spelling of 23221201401 in words is "twenty-three billion, two hundred twenty-one million, two hundred one thousand, four hundred one".

Divisors: 1 3 9 3119 9357 28071 827231 2481693 7445079 2580133489 7740400467 23221201401