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23985214519 = 715721824581
BaseRepresentation
bin10110010101101000…
…010101010000110111
32021220120102010211111
4112111220111100313
5343110203331034
615004010215451
71506242650060
oct262550252067
967816363744
1023985214519
11a199034742
124794724587
132353220536
1412376ab567
15955a70364
hex595a15437

23985214519 has 8 divisors (see below), whose sum is σ = 27586271648. Its totient is φ = 20427806880.

The previous prime is 23985214489. The next prime is 23985214549. The reversal of 23985214519 is 91541258932.

It is an interprime number because it is at equal distance from previous prime (23985214489) and next prime (23985214549).

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 23985214519 - 29 = 23985214007 is a prime.

It is a super-2 number, since 2×239852145192 (a number of 22 digits) contains 22 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 (23985214549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10911192 + ... + 10913389.

It is an arithmetic number, because the mean of its divisors is an integer number (3448283956).

Almost surely, 223985214519 is an apocalyptic number.

23985214519 is a deficient number, since it is larger than the sum of its proper divisors (3601057129).

23985214519 is a wasteful number, since it uses less digits than its factorization.

23985214519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21824745.

The product of its digits is 777600, while the sum is 49.

The spelling of 23985214519 in words is "twenty-three billion, nine hundred eighty-five million, two hundred fourteen thousand, five hundred nineteen".

Divisors: 1 7 157 1099 21824581 152772067 3426459217 23985214519