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3871405053 = 321737683873
BaseRepresentation
bin1110011011000000…
…1111001111111101
3100222210201202100100
43212300033033331
530412034430203
61440053351313
7164636254125
oct34660171775
910883652310
103871405053
111707341a0a
12900638539
134990a8629
1428a23bc85
15179d22ea3
hexe6c0f3fd

3871405053 has 24 divisors (see below), whose sum is σ = 6081007608. Its totient is φ = 2363461632.

The previous prime is 3871405051. The next prime is 3871405093. The reversal of 3871405053 is 3505041783.

3871405053 is a `hidden beast` number, since 3 + 8 + 7 + 140 + 505 + 3 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2759716089 + 1111688964 = 52533^2 + 33342^2 .

It is not a de Polignac number, because 3871405053 - 21 = 3871405051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3871404999 and 3871405017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3871405051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 336276 + ... + 347597.

It is an arithmetic number, because the mean of its divisors is an integer number (253375317).

Almost surely, 23871405053 is an apocalyptic number.

It is an amenable number.

3871405053 is a deficient number, since it is larger than the sum of its proper divisors (2209602555).

3871405053 is a wasteful number, since it uses less digits than its factorization.

3871405053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683933 (or 683930 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 3871405053 is about 62220.6159805574. The cubic root of 3871405053 is about 1570.2044513113.

The spelling of 3871405053 in words is "three billion, eight hundred seventy-one million, four hundred five thousand, fifty-three".

Divisors: 1 3 9 17 37 51 111 153 333 629 1887 5661 683873 2051619 6154857 11625841 25303301 34877523 75909903 104632569 227729709 430156117 1290468351 3871405053