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23040153401 = 41561954961
BaseRepresentation
bin10101011101010011…
…001101011100111001
32012110201010001200212
4111131103031130321
5334141234402101
614330130240505
71443646033616
oct253523153471
965421101625
1023040153401
1198536252a1
124570126135
1322324aa785
141187d8150d
158ecae21bb
hex55d4cd739

23040153401 has 4 divisors (see below), whose sum is σ = 23602108404. Its totient is φ = 22478198400.

The previous prime is 23040153359. The next prime is 23040153443. The reversal of 23040153401 is 10435104032.

23040153401 = T19294 + T19295 + ... + T19416.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (23040153359) and next prime (23040153443).

It can be written as a sum of positive squares in 2 ways, for example, as 1980339001 + 21059814400 = 44501^2 + 145120^2 .

It is a cyclic number.

It is not a de Polignac number, because 23040153401 - 26 = 23040153337 is a prime.

It is a super-2 number, since 2×230401534012 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23040153491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280977440 + ... + 280977521.

It is an arithmetic number, because the mean of its divisors is an integer number (5900527101).

Almost surely, 223040153401 is an apocalyptic number.

It is an amenable number.

23040153401 is a deficient number, since it is larger than the sum of its proper divisors (561955003).

23040153401 is an equidigital number, since it uses as much as digits as its factorization.

23040153401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561955002.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 23040153401 its reverse (10435104032), we get a palindrome (33475257433).

The spelling of 23040153401 in words is "twenty-three billion, forty million, one hundred fifty-three thousand, four hundred one".

Divisors: 1 41 561954961 23040153401