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206920896 = 2637132911
BaseRepresentation
bin11000101010101…
…01110011000000
3112102100200002220
430111111303000
5410432432041
632311011040
75061540630
oct1425256300
9472320086
10206920896
11a688a806
1259369a80
1333b3b500
141d6a46c0
1513274d66
hexc555cc0

206920896 has 168 divisors, whose sum is σ = 678265344. Its totient is φ = 54512640.

The previous prime is 206920853. The next prime is 206920927. The reversal of 206920896 is 698029602.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 226681 + ... + 227591.

Almost surely, 2206920896 is an apocalyptic number.

206920896 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206920896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (339132672).

206920896 is an abundant number, since it is smaller than the sum of its proper divisors (471344448).

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

206920896 is a wasteful number, since it uses less digits than its factorization.

206920896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959 (or 936 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 206920896 is about 14384.7452532188. The cubic root of 206920896 is about 591.4728079920.

The spelling of 206920896 in words is "two hundred six million, nine hundred twenty thousand, eight hundred ninety-six".