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16372161040 = 245204652013
BaseRepresentation
bin11110011111101101…
…10101101000010000
31120021000002221202211
433033312311220100
5232012233123130
611304332121504
71116501033634
oct171766655020
946230087684
1016372161040
116a41726a04
12320b006294
13170bbcb371
14b1456adc4
1565c50aa2a
hex3cfdb5a10

16372161040 has 20 divisors (see below), whose sum is σ = 38065274604. Its totient is φ = 6548864384.

The previous prime is 16372161017. The next prime is 16372161079. The reversal of 16372161040 is 4016127361.

It can be written as a sum of positive squares in 2 ways, for example, as 6575912464 + 9796248576 = 81092^2 + 98976^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 16372160993 and 16372161011.

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 3 ways as a sum of consecutive naturals, for example, 102325927 + ... + 102326086.

Almost surely, 216372161040 is an apocalyptic number.

16372161040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16372161040 is an abundant number, since it is smaller than the sum of its proper divisors (21693113564).

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

16372161040 is a wasteful number, since it uses less digits than its factorization.

16372161040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204652026 (or 204652020 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The spelling of 16372161040 in words is "sixteen billion, three hundred seventy-two million, one hundred sixty-one thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 204652013 409304026 818608052 1023260065 1637216104 2046520130 3274432208 4093040260 8186080520 16372161040