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23301020020 = 2251165051001
BaseRepresentation
bin10101101100110110…
…010101100101110100
32020010212222110102111
4111230312111211310
5340210030120040
614412045420404
71453264254655
oct255466254564
966125873374
1023301020020
119977900243
12462356a704
132274556315
1411b088952c
15915970dea
hex56cd95974

23301020020 has 12 divisors (see below), whose sum is σ = 48932142084. Its totient is φ = 9320408000.

The previous prime is 23301019967. The next prime is 23301020027. The reversal of 23301020020 is 2002010332.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10560028644 + 12740991376 = 102762^2 + 112876^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23301020027) 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 3 ways as a sum of consecutive naturals, for example, 582525481 + ... + 582525520.

It is an arithmetic number, because the mean of its divisors is an integer number (4077678507).

Almost surely, 223301020020 is an apocalyptic number.

23301020020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23301020020 is an abundant number, since it is smaller than the sum of its proper divisors (25631122064).

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

23301020020 is a wasteful number, since it uses less digits than its factorization.

23301020020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165051010 (or 1165051008 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 23301020020 its reverse (2002010332), we get a palindrome (25303030352).

The spelling of 23301020020 in words is "twenty-three billion, three hundred one million, twenty thousand, twenty".

Divisors: 1 2 4 5 10 20 1165051001 2330102002 4660204004 5825255005 11650510010 23301020020