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20746700148 = 2231728891679
BaseRepresentation
bin10011010100100110…
…011000010101110100
31222112212120120021210
4103110212120111310
5314442123401043
613310401441420
71333060020156
oct232446302564
958485516253
1020746700148
118886a75989
124030040270
131c582b8445
14100b538ad6
158165b5633
hex4d4998574

20746700148 has 12 divisors (see below), whose sum is σ = 48408967040. Its totient is φ = 6915566712.

The previous prime is 20746700129. The next prime is 20746700209. The reversal of 20746700148 is 84100764702.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 864445828 + ... + 864445851.

Almost surely, 220746700148 is an apocalyptic number.

It is an amenable number.

20746700148 is an abundant number, since it is smaller than the sum of its proper divisors (27662266892).

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

20746700148 is a wasteful number, since it uses less digits than its factorization.

20746700148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1728891686 (or 1728891684 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 39.

The spelling of 20746700148 in words is "twenty billion, seven hundred forty-six million, seven hundred thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 12 1728891679 3457783358 5186675037 6915566716 10373350074 20746700148