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16725345340 = 22511671134691
BaseRepresentation
bin11111001001110100…
…01000010000111100
31121011121200120112211
433210322020100330
5233223142022330
611403350110204
71131320042524
oct174472102074
947147616484
1016725345340
117103026560
1232a934b364
13176712aa62
14b49426684
1567d522d2a
hex3e4e8843c

16725345340 has 48 divisors (see below), whose sum is σ = 38888164224. Its totient is φ = 5991163200.

The previous prime is 16725345319. The next prime is 16725345341. The reversal of 16725345340 is 4354352761.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 16725345293 and 16725345302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16725345341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 552606 + ... + 582085.

It is an arithmetic number, because the mean of its divisors is an integer number (810170088).

Almost surely, 216725345340 is an apocalyptic number.

16725345340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16725345340 is an abundant number, since it is smaller than the sum of its proper divisors (22162818884).

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

16725345340 is a wasteful number, since it uses less digits than its factorization.

16725345340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134778 (or 1134776 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 40.

The spelling of 16725345340 in words is "sixteen billion, seven hundred twenty-five million, three hundred forty-five thousand, three hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 67 110 134 220 268 335 670 737 1340 1474 2948 3685 7370 14740 1134691 2269382 4538764 5673455 11346910 12481601 22693820 24963202 49926404 62408005 76024297 124816010 152048594 249632020 304097188 380121485 760242970 836267267 1520485940 1672534534 3345069068 4181336335 8362672670 16725345340