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20692416448 = 261129392637
BaseRepresentation
bin10011010001010111…
…010011011111000000
31222102002102200001101
4103101113103133000
5314334224311243
613301142144144
71331530431514
oct232127233700
958362380041
1020692416448
118859369820
124015a22054
131c49c90302
141004248144
1581194154d
hex4d15d37c0

20692416448 has 28 divisors (see below), whose sum is σ = 44794380312. Its totient is φ = 9405643520.

The previous prime is 20692416427. The next prime is 20692416461. The reversal of 20692416448 is 84461429602.

It is a junction number, because it is equal to n+sod(n) for n = 20692416398 and 20692416407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14695615 + ... + 14697022.

Almost surely, 220692416448 is an apocalyptic number.

It is an amenable number.

20692416448 is an abundant number, since it is smaller than the sum of its proper divisors (24101963864).

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

20692416448 is a wasteful number, since it uses less digits than its factorization.

20692416448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29392660 (or 29392650 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 46.

The spelling of 20692416448 in words is "twenty billion, six hundred ninety-two million, four hundred sixteen thousand, four hundred forty-eight".

Divisors: 1 2 4 8 11 16 22 32 44 64 88 176 352 704 29392637 58785274 117570548 235141096 323319007 470282192 646638014 940564384 1293276028 1881128768 2586552056 5173104112 10346208224 20692416448