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3480101721 = 321572462917
BaseRepresentation
bin1100111101101110…
…0010001101011001
322222112102111002100
43033123202031121
524111401223341
61333154354013
7152145243105
oct31733421531
98875374070
103480101721
111526476a28
1281158b909
13435cc05b5
1425029c905
151557cb3b6
hexcf6e2359

3480101721 has 12 divisors (see below), whose sum is σ = 5058833572. Its totient is φ = 2305289376.

The previous prime is 3480101719. The next prime is 3480101767. The reversal of 3480101721 is 1271010843.

3480101721 is a `hidden beast` number, since 3 + 480 + 10 + 172 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2617857225 + 862244496 = 51165^2 + 29364^2 .

It is not a de Polignac number, because 3480101721 - 21 = 3480101719 is a prime.

It is a super-2 number, since 2×34801017212 = 24222215977014323682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3480101621) 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, 1230046 + ... + 1232871.

Almost surely, 23480101721 is an apocalyptic number.

It is an amenable number.

3480101721 is a deficient number, since it is larger than the sum of its proper divisors (1578731851).

3480101721 is a wasteful number, since it uses less digits than its factorization.

3480101721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2463080 (or 2463077 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 3480101721 is about 58992.3869749309. The cubic root of 3480101721 is about 1515.4117352961.

The spelling of 3480101721 in words is "three billion, four hundred eighty million, one hundred one thousand, seven hundred twenty-one".

Divisors: 1 3 9 157 471 1413 2462917 7388751 22166253 386677969 1160033907 3480101721