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20110230992 = 241256889437
BaseRepresentation
bin10010101110101010…
…011100010111010000
31220220111221120202002
4102232222130113100
5312141204342432
613123304013132
71311231100025
oct225652342720
956814846662
1020110230992
11858a779215
123a92a611a8
131b86491187
14d8abbb54c
157ca791e62
hex4aea9c5d0

20110230992 has 10 divisors (see below), whose sum is σ = 38963572578. Its totient is φ = 10055115488.

The previous prime is 20110230979. The next prime is 20110230997. The reversal of 20110230992 is 29903201102.

It can be written as a sum of positive squares in only one way, i.e., 18172118416 + 1938112576 = 134804^2 + 44024^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110230997) by changing a digit.

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 as a sum of consecutive naturals, namely, 628444703 + ... + 628444734.

Almost surely, 220110230992 is an apocalyptic number.

It is an amenable number.

20110230992 is a deficient number, since it is larger than the sum of its proper divisors (18853341586).

20110230992 is a wasteful number, since it uses less digits than its factorization.

20110230992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256889445 (or 1256889439 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 29.

The spelling of 20110230992 in words is "twenty billion, one hundred ten million, two hundred thirty thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 16 1256889437 2513778874 5027557748 10055115496 20110230992