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16899419440 = 245499942257
BaseRepresentation
bin11111011110100100…
…01010110100110000
31121121202020110022201
433233102022310300
5234102222410230
611432525112544
71135532460301
oct175722126460
947552213281
1016899419440
117192310a52
1233376b8754
131794208597
14b645ba7a8
1568d95a5ca
hex3ef48ad30

16899419440 has 40 divisors (see below), whose sum is σ = 39299940000. Its totient is φ = 6758255616.

The previous prime is 16899419437. The next prime is 16899419473. The reversal of 16899419440 is 4491499861.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378792 + ... + 421048.

It is an arithmetic number, because the mean of its divisors is an integer number (982498500).

Almost surely, 216899419440 is an apocalyptic number.

16899419440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16899419440 is an abundant number, since it is smaller than the sum of its proper divisors (22400520560).

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

16899419440 is a wasteful number, since it uses less digits than its factorization.

16899419440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47269 (or 47263 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 55.

The spelling of 16899419440 in words is "sixteen billion, eight hundred ninety-nine million, four hundred nineteen thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 4999 9998 19996 24995 39992 42257 49990 79984 84514 99980 169028 199960 211285 338056 399920 422570 676112 845140 1690280 3380560 211242743 422485486 844970972 1056213715 1689941944 2112427430 3379883888 4224854860 8449709720 16899419440