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16408850020 = 2251292363487
BaseRepresentation
bin11110100100000101…
…10010111001100100
31120100120010221120221
433102002302321210
5232101131200040
611312122334124
71120424631613
oct172202627144
946316127527
1016408850020
116a60405982
12321b35a344
1317166a5b14
14b1939b87a
1566085674a
hex3d20b2e64

16408850020 has 24 divisors (see below), whose sum is σ = 34461794304. Its totient is φ = 6562928736.

The previous prime is 16408849997. The next prime is 16408850023. The reversal of 16408850020 is 2005880461.

It is not an unprimeable number, because it can be changed into a prime (16408850023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226717 + ... + 290203.

It is an arithmetic number, because the mean of its divisors is an integer number (1435908096).

Almost surely, 216408850020 is an apocalyptic number.

16408850020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16408850020 is an abundant number, since it is smaller than the sum of its proper divisors (18052944284).

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

16408850020 is a wasteful number, since it uses less digits than its factorization.

16408850020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76419 (or 76417 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

The spelling of 16408850020 in words is "sixteen billion, four hundred eight million, eight hundred fifty thousand, twenty".

Divisors: 1 2 4 5 10 20 12923 25846 51692 63487 64615 126974 129230 253948 258460 317435 634870 1269740 820442501 1640885002 3281770004 4102212505 8204425010 16408850020