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20032031110 = 2571322013221
BaseRepresentation
bin10010101010000000…
…001000100110000110
31220201001210121200011
4102222000020212012
5312011144443420
613111431540434
71306261312030
oct225200104606
956631717604
1020032031110
11854a617513
123a7082a71a
131b73211260
14d80662c50
157c399695a
hex4aa008986

20032031110 has 32 divisors (see below), whose sum is σ = 44378655552. Its totient is φ = 6339807360.

The previous prime is 20032031099. The next prime is 20032031119. The reversal of 20032031110 is 1113023002.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20032031119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11005701 + ... + 11007520.

It is an arithmetic number, because the mean of its divisors is an integer number (1386832986).

Almost surely, 220032031110 is an apocalyptic number.

20032031110 is an abundant number, since it is smaller than the sum of its proper divisors (24346624442).

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

20032031110 is a wasteful number, since it uses less digits than its factorization.

20032031110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22013248.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20032031110 its reverse (1113023002), we get a palindrome (21145054112).

The spelling of 20032031110 in words is "twenty billion, thirty-two million, thirty-one thousand, one hundred ten".

Divisors: 1 2 5 7 10 13 14 26 35 65 70 91 130 182 455 910 22013221 44026442 110066105 154092547 220132210 286171873 308185094 572343746 770462735 1430859365 1540925470 2003203111 2861718730 4006406222 10016015555 20032031110