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47172903190 = 25741964719
BaseRepresentation
bin101011111011101110…
…010110000100010110
311111202120010202212121
4223323232112010112
51233102230400230
633400531010154
73256663030000
oct537356260426
9144676122777
1047172903190
1119007968406
12918613995a
1345aa14608a
1423d7095370
1513615a677a
hexafbb96116

47172903190 has 40 divisors (see below), whose sum is σ = 99057252960. Its totient is φ = 16173558576.

The previous prime is 47172903161. The next prime is 47172903199. The reversal of 47172903190 is 9130927174.

It is a happy number.

It is a super-2 number, since 2×471729031902 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47172903199) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 958350 + ... + 1006369.

It is an arithmetic number, because the mean of its divisors is an integer number (2476431324).

Almost surely, 247172903190 is an apocalyptic number.

47172903190 is an abundant number, since it is smaller than the sum of its proper divisors (51884349770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47172903190 is an equidigital number, since it uses as much as digits as its factorization.

47172903190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1964754 (or 1964733 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 43.

The spelling of 47172903190 in words is "forty-seven billion, one hundred seventy-two million, nine hundred three thousand, one hundred ninety".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 343 490 686 1715 2401 3430 4802 12005 24010 1964719 3929438 9823595 13753033 19647190 27506066 68765165 96271231 137530330 192542462 481356155 673898617 962712310 1347797234 3369493085 4717290319 6738986170 9434580638 23586451595 47172903190