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204443102040 = 23351703692517
BaseRepresentation
bin1011111001100111000…
…0100010101101011000
3201112200222202122200020
42332121300202231120
511322144413231130
6233530405110440
720525201460162
oct2763160425530
9645628678606
10204443102040
117978188a561
12337576b8420
1316381993938
149c76219932
1554b8573e10
hex2f99c22b58

204443102040 has 32 divisors (see below), whose sum is σ = 613329306480. Its totient is φ = 54518160512.

The previous prime is 204443102023. The next prime is 204443102041. The reversal of 204443102040 is 40201344402.

It is a happy number.

204443102040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 204443102040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204443102041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 851846139 + ... + 851846378.

Almost surely, 2204443102040 is an apocalyptic number.

204443102040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204443102040 is an abundant number, since it is smaller than the sum of its proper divisors (408886204440).

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

204443102040 is a wasteful number, since it uses less digits than its factorization.

204443102040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703692531 (or 1703692527 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 204443102040 its reverse (40201344402), we get a palindrome (244644446442).

The spelling of 204443102040 in words is "two hundred four billion, four hundred forty-three million, one hundred two thousand, forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 1703692517 3407385034 5111077551 6814770068 8518462585 10222155102 13629540136 17036925170 20444310204 25555387755 34073850340 40888620408 51110775510 68147700680 102221551020 204443102040