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15130277680 = 2457236789197
BaseRepresentation
bin11100001011101010…
…11011011100110000
31110001110021202001211
432011311123130300
5221441322341210
610541210205504
71043641144510
oct160565333460
943043252054
1015130277680
116464713621
122b23123894
13157183103b
14a37657840
155d849a38a
hex385d5b730

15130277680 has 320 divisors, whose sum is σ = 43274373120. Its totient is φ = 4808466432.

The previous prime is 15130277633. The next prime is 15130277681. The reversal of 15130277680 is 8677203151.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (15130277681) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 76803342 + ... + 76803538.

It is an arithmetic number, because the mean of its divisors is an integer number (135232416).

Almost surely, 215130277680 is an apocalyptic number.

15130277680 is a gapful number since it is divisible by the number (10) 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 15130277680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21637186560).

15130277680 is an abundant number, since it is smaller than the sum of its proper divisors (28144095440).

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

15130277680 is a wasteful number, since it uses less digits than its factorization.

15130277680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396 (or 390 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 40.

The spelling of 15130277680 in words is "fifteen billion, one hundred thirty million, two hundred seventy-seven thousand, six hundred eighty".