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19610038272 = 2123114109
BaseRepresentation
bin10010010000110110…
…010111000000000000
31212121122202011022210
4102100312113000000
5310130132211042
613001515102120
71262645401146
oct222066270000
955548664283
1019610038272
1183533a0000
123973441940
131b0696c456
14d405b5596
1579b8dba9c
hex490d97000

19610038272 has 260 divisors, whose sum is σ = 58043064200. Its totient is φ = 5887918080.

The previous prime is 19610038219. The next prime is 19610038321. The reversal of 19610038272 is 27283001691.

It is a super-3 number, since 3×196100382723 (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 19610038272.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 179908554 + ... + 179908662.

Almost surely, 219610038272 is an apocalyptic number.

19610038272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19610038272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29021532100).

19610038272 is an abundant number, since it is smaller than the sum of its proper divisors (38433025928).

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

19610038272 is an frugal number, since it uses more digits than its factorization.

19610038272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The spelling of 19610038272 in words is "nineteen billion, six hundred ten million, thirty-eight thousand, two hundred seventy-two".