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3981908414 = 211218190907
BaseRepresentation
bin1110110101010111…
…0001100110111110
3101021111122220110102
43231111301212332
531123332032124
61455042041102
7200450443301
oct35525614676
911244586412
103981908414
111763757800
12931649192
134b5c58b33
1429aba4b38
1518489eaae
hexed5719be

3981908414 has 24 divisors (see below), whose sum is σ = 6601557144. Its totient is φ = 1799938800.

The previous prime is 3981908387. The next prime is 3981908417. The reversal of 3981908414 is 4148091893.

It is a super-3 number, since 3×39819084143 (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3981908417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1652 + ... + 89255.

It is an arithmetic number, because the mean of its divisors is an integer number (275064881).

Almost surely, 23981908414 is an apocalyptic number.

3981908414 is a deficient number, since it is larger than the sum of its proper divisors (2619648730).

3981908414 is a wasteful number, since it uses less digits than its factorization.

3981908414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91112 (or 91101 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 47.

The square root of 3981908414 is about 63102.3645674233. The cubic root of 3981908414 is about 1585.0042178965.

It can be divided in two parts, 398190 and 8414, that added together give a palindrome (406604).

The spelling of 3981908414 in words is "three billion, nine hundred eighty-one million, nine hundred eight thousand, four hundred fourteen".

Divisors: 1 2 11 22 121 181 242 362 1991 3982 21901 43802 90907 181814 999977 1999954 10999747 16454167 21999494 32908334 180995837 361991674 1990954207 3981908414