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3681414681 = 37597141849
BaseRepresentation
bin1101101101101101…
…1110111000011001
3100111120020020112220
43123123132320121
530014420232211
61405145254253
7160141336260
oct33333367031
910446206486
103681414681
11161a07637a
12868a94389
134689173a9
1426cd035d7
151682e4806
hexdb6dee19

3681414681 has 32 divisors (see below), whose sum is σ = 5785344000. Its totient is φ = 2038834560.

The previous prime is 3681414643. The next prime is 3681414689. The reversal of 3681414681 is 1864141863.

It is not a de Polignac number, because 3681414681 - 211 = 3681412633 is a prime.

It is a super-4 number, since 4×36814146814 (a number of 39 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3681414689) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67045 + ... + 108893.

It is an arithmetic number, because the mean of its divisors is an integer number (180792000).

Almost surely, 23681414681 is an apocalyptic number.

It is an amenable number.

3681414681 is a deficient number, since it is larger than the sum of its proper divisors (2103929319).

3681414681 is a wasteful number, since it uses less digits than its factorization.

3681414681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41989.

The product of its digits is 110592, while the sum is 42.

The square root of 3681414681 is about 60674.6625948591. The cubic root of 3681414681 is about 1544.0863365561.

The spelling of 3681414681 in words is "three billion, six hundred eighty-one million, four hundred fourteen thousand, six hundred eighty-one".

Divisors: 1 3 7 21 59 71 177 213 413 497 1239 1491 4189 12567 29323 41849 87969 125547 292943 878829 2469091 2971279 7407273 8913837 17283637 20798953 51850911 62396859 175305461 525916383 1227138227 3681414681