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3989215375 = 5337018623
BaseRepresentation
bin1110110111000110…
…1001100010001111
3101022000102010201121
43231301221202033
531132214343000
61455502421411
7200566525345
oct35561514217
911260363647
103989215375
111767898612
12933b91867
134b7616992
1429bb47995
15185344b1a
hexedc6988f

3989215375 has 16 divisors (see below), whose sum is σ = 4980463488. Its totient is φ = 3190140000.

The previous prime is 3989215367. The next prime is 3989215453. The reversal of 3989215375 is 5735129893.

It is not a de Polignac number, because 3989215375 - 23 = 3989215367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 458314 + ... + 466936.

It is an arithmetic number, because the mean of its divisors is an integer number (311278968).

Almost surely, 23989215375 is an apocalyptic number.

3989215375 is a deficient number, since it is larger than the sum of its proper divisors (991248113).

3989215375 is an equidigital number, since it uses as much as digits as its factorization.

3989215375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12339 (or 12329 counting only the distinct ones).

The product of its digits is 2041200, while the sum is 52.

The square root of 3989215375 is about 63160.2357104531. The cubic root of 3989215375 is about 1585.9731408186.

The spelling of 3989215375 in words is "three billion, nine hundred eighty-nine million, two hundred fifteen thousand, three hundred seventy-five".

Divisors: 1 5 25 125 3701 8623 18505 43115 92525 215575 462625 1077875 31913723 159568615 797843075 3989215375