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16139350580 = 2252137377617
BaseRepresentation
bin11110000011111101…
…01111001000110100
31112122210000221212012
433001332233020310
5231023133204310
611225254143352
71110643134143
oct170176571064
945583027765
1016139350580
116932273a71
123165051b58
1316a28c6ab2
14ad168775a
15646d6ec05
hex3c1faf234

16139350580 has 24 divisors (see below), whose sum is σ = 33908585928. Its totient is φ = 6452702208.

The previous prime is 16139350573. The next prime is 16139350607. The reversal of 16139350580 is 8505393161.

It can be written as a sum of positive squares in 4 ways, for example, as 233600656 + 15905749924 = 15284^2 + 126118^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146069 + ... + 231548.

It is an arithmetic number, because the mean of its divisors is an integer number (1412857747).

Almost surely, 216139350580 is an apocalyptic number.

16139350580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16139350580 is an abundant number, since it is smaller than the sum of its proper divisors (17769235348).

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

16139350580 is a wasteful number, since it uses less digits than its factorization.

16139350580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379763 (or 379761 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 41.

The spelling of 16139350580 in words is "sixteen billion, one hundred thirty-nine million, three hundred fifty thousand, five hundred eighty".

Divisors: 1 2 4 5 10 20 2137 4274 8548 10685 21370 42740 377617 755234 1510468 1888085 3776170 7552340 806967529 1613935058 3227870116 4034837645 8069675290 16139350580