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23534032153 = 77330445061
BaseRepresentation
bin10101111010101111…
…001101010100011001
32020202010102200222111
4111322233031110121
5341144203012103
614451131552321
71462123654432
oct257257152431
966663380874
1023534032153
119a87390755
1246895bb6a1
1322b08cb618
1411d37c2489
1592b14b86d
hex57abcd519

23534032153 has 4 divisors (see below), whose sum is σ = 23564477988. Its totient is φ = 23503586320.

The previous prime is 23534032087. The next prime is 23534032163. The reversal of 23534032153 is 35123043532.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1507613584 + 22026418569 = 38828^2 + 148413^2 .

It is a cyclic number.

It is not a de Polignac number, because 23534032153 - 217 = 23533901081 is a prime.

It is a super-3 number, since 3×235340321533 (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23534032163) 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, 15221758 + ... + 15223303.

It is an arithmetic number, because the mean of its divisors is an integer number (5891119497).

Almost surely, 223534032153 is an apocalyptic number.

It is an amenable number.

23534032153 is a deficient number, since it is larger than the sum of its proper divisors (30445835).

23534032153 is an equidigital number, since it uses as much as digits as its factorization.

23534032153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30445834.

The product of its (nonzero) digits is 32400, while the sum is 31.

Adding to 23534032153 its reverse (35123043532), we get a palindrome (58657075685).

The spelling of 23534032153 in words is "twenty-three billion, five hundred thirty-four million, thirty-two thousand, one hundred fifty-three".

Divisors: 1 773 30445061 23534032153