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203020012144 = 2412688750759
BaseRepresentation
bin1011110100010011101…
…1111000101001110000
3201102000210222012100001
42331010323320221300
511311241110342034
6233133251235344
720445011426065
oct2750473705160
9642023865301
10203020012144
1179111560004
123341aba8b54
13161b5bbc501
149b7d216c6c
15543366ca14
hex2f44ef8a70

203020012144 has 10 divisors (see below), whose sum is σ = 393351273560. Its totient is φ = 101510006064.

The previous prime is 203020012123. The next prime is 203020012147. The reversal of 203020012144 is 441210020302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203020012147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6344375364 + ... + 6344375395.

It is an arithmetic number, because the mean of its divisors is an integer number (39335127356).

Almost surely, 2203020012144 is an apocalyptic number.

It is an amenable number.

203020012144 is a deficient number, since it is larger than the sum of its proper divisors (190331261416).

203020012144 is a wasteful number, since it uses less digits than its factorization.

203020012144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12688750767 (or 12688750761 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 203020012144 its reverse (441210020302), we get a palindrome (644230032446).

The spelling of 203020012144 in words is "two hundred three billion, twenty million, twelve thousand, one hundred forty-four".

Divisors: 1 2 4 8 16 12688750759 25377501518 50755003036 101510006072 203020012144