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3480172381 = 73713436959
BaseRepresentation
bin1100111101101111…
…0011011101011101
322222112120002000101
43033123303131131
524111411004011
61333200101101
7152145656110
oct31733633535
98875502011
103480172381
111526515024
12811604791
134360167ca
142502ba577
151557e22c1
hexcf6f375d

3480172381 has 8 divisors (see below), whose sum is σ = 4084835840. Its totient is φ = 2902382928.

The previous prime is 3480172379. The next prime is 3480172393. The reversal of 3480172381 is 1832710843.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3480172381 - 21 = 3480172379 is a prime.

It is a super-2 number, since 2×34801723812 = 24223199602950418322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3480172381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3480172351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6718221 + ... + 6718738.

It is an arithmetic number, because the mean of its divisors is an integer number (510604480).

Almost surely, 23480172381 is an apocalyptic number.

It is an amenable number.

3480172381 is a deficient number, since it is larger than the sum of its proper divisors (604663459).

3480172381 is a wasteful number, since it uses less digits than its factorization.

3480172381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13437003.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 3480172381 is about 58992.9858627278. The cubic root of 3480172381 is about 1515.4219915354.

The spelling of 3480172381 in words is "three billion, four hundred eighty million, one hundred seventy-two thousand, three hundred eighty-one".

Divisors: 1 7 37 259 13436959 94058713 497167483 3480172381