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23400344415443 = 193139728937887
BaseRepresentation
bin1010101001000010100010…
…01101110110110011010011
310001212001101020101021021012
411110201101031312303103
511031342401132243233
6121433545251521135
74633422230454452
oct524412115666323
9101761336337235
1023400344415443
117502037416576
12275b187bb91ab
131009848901298
145ac822d6cb99
152a8a6b357548
hex154851376cd3

23400344415443 has 8 divisors (see below), whose sum is σ = 25426520248320. Its totient is φ = 21453626458440.

The previous prime is 23400344415431. The next prime is 23400344415479. The reversal of 23400344415443 is 34451444300432.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23400344415443 - 212 = 23400344411347 is a prime.

It is a super-3 number, since 3×234003444154433 (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23400344415443.

It is not an unprimeable number, because it can be changed into a prime (23400344415143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19864468355 + ... + 19864469532.

It is an arithmetic number, because the mean of its divisors is an integer number (3178315031040).

Almost surely, 223400344415443 is an apocalyptic number.

23400344415443 is a deficient number, since it is larger than the sum of its proper divisors (2026175832877).

23400344415443 is a wasteful number, since it uses less digits than its factorization.

23400344415443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39728937937.

The product of its (nonzero) digits is 1105920, while the sum is 41.

Adding to 23400344415443 its reverse (34451444300432), we get a palindrome (57851788715875).

The spelling of 23400344415443 in words is "twenty-three trillion, four hundred billion, three hundred forty-four million, four hundred fifteen thousand, four hundred forty-three".

Divisors: 1 19 31 589 39728937887 754849819853 1231597074497 23400344415443