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230121032020 = 225111046004691
BaseRepresentation
bin1101011001010001001…
…0000100100101010100
3210222222112022122120221
43112110102010211110
512232241441011040
6253414404204124
722424420332615
oct3262422044524
9728875278527
10230121032020
11896593613a0
1238723099644
13189147acb49
14b1d0633c0c
155ebca0974a
hex3594484954

230121032020 has 24 divisors (see below), whose sum is σ = 527186364768. Its totient is φ = 83680375200.

The previous prime is 230121031991. The next prime is 230121032021. The reversal of 230121032020 is 20230121032.

It is a junction number, because it is equal to n+sod(n) for n = 230121031985 and 230121032003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230121032021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 523002126 + ... + 523002565.

It is an arithmetic number, because the mean of its divisors is an integer number (21966098532).

Almost surely, 2230121032020 is an apocalyptic number.

230121032020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230121032020 is an abundant number, since it is smaller than the sum of its proper divisors (297065332748).

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

230121032020 is a wasteful number, since it uses less digits than its factorization.

230121032020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046004711 (or 1046004709 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 230121032020 its reverse (20230121032), we get a palindrome (250351153052).

The spelling of 230121032020 in words is "two hundred thirty billion, one hundred twenty-one million, thirty-two thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 1046004691 2092009382 4184018764 5230023455 10460046910 11506051601 20920093820 23012103202 46024206404 57530258005 115060516010 230121032020