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16922480450 = 252183972
BaseRepresentation
bin11111100001010100…
…01000111101000010
31121200100122002002012
433300222020331002
5234124123333300
611435111252522
71136232465461
oct176052107502
947610562065
1016922480450
1171a4332037
12334337a142
131798c21055
14b676a09d8
156909b3435
hex3f0a88f42

16922480450 has 18 divisors (see below), whose sum is σ = 31477524651. Its totient is φ = 6768624240.

The previous prime is 16922480429. The next prime is 16922480479. The reversal of 16922480450 is 5408422961.

It can be written as a sum of positive squares in 5 ways, for example, as 13683618529 + 3238861921 = 116977^2 + 56911^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=91985.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16922480398 and 16922480407.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 910652 + ... + 929048.

Almost surely, 216922480450 is an apocalyptic number.

16922480450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16922480450 is a deficient number, since it is larger than the sum of its proper divisors (14555044201).

16922480450 is an frugal number, since it uses more digits than its factorization.

16922480450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36806 (or 18404 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The spelling of 16922480450 in words is "sixteen billion, nine hundred twenty-two million, four hundred eighty thousand, four hundred fifty".

Divisors: 1 2 5 10 25 50 18397 36794 91985 183970 459925 919850 338449609 676899218 1692248045 3384496090 8461240225 16922480450