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23871420069 = 371136734289
BaseRepresentation
bin10110001110110110…
…001111011010100101
32021121122021210012020
4112032312033122211
5342342040420234
614544423213353
71503361502610
oct261666173245
967548253166
1023871420069
11a13a881242
1247625a7259
13233578a043
141226529177
1594aa93549
hex58ed8f6a5

23871420069 has 8 divisors (see below), whose sum is σ = 36375497280. Its totient is φ = 13640811456.

The previous prime is 23871420031. The next prime is 23871420073. The reversal of 23871420069 is 96002417832.

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

It is not a de Polignac number, because 23871420069 - 213 = 23871411877 is a prime.

It is a super-2 number, since 2×238714200692 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23871420069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23871420269) 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, 568367124 + ... + 568367165.

It is an arithmetic number, because the mean of its divisors is an integer number (4546937160).

Almost surely, 223871420069 is an apocalyptic number.

It is an amenable number.

23871420069 is a deficient number, since it is larger than the sum of its proper divisors (12504077211).

23871420069 is a wasteful number, since it uses less digits than its factorization.

23871420069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136734299.

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 23871420069 in words is "twenty-three billion, eight hundred seventy-one million, four hundred twenty thousand, sixty-nine".

Divisors: 1 3 7 21 1136734289 3410202867 7957140023 23871420069