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23343120340 = 2251167156017
BaseRepresentation
bin10101101111010110…
…111011111111010100
32020020211012101012121
4111233112323333110
5340301314322330
614420152025324
71454315151301
oct255726737724
966224171177
1023343120340
1199996458a1
124635692244
1322801a6b57
1411b62c80a8
159194da17a
hex56f5bbfd4

23343120340 has 12 divisors (see below), whose sum is σ = 49020552756. Its totient is φ = 9337248128.

The previous prime is 23343120323. The next prime is 23343120341. The reversal of 23343120340 is 4302134332.

It can be written as a sum of positive squares in 2 ways, for example, as 18025210564 + 5317909776 = 134258^2 + 72924^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23343120341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 583577989 + ... + 583578028.

It is an arithmetic number, because the mean of its divisors is an integer number (4085046063).

Almost surely, 223343120340 is an apocalyptic number.

23343120340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23343120340 is an abundant number, since it is smaller than the sum of its proper divisors (25677432416).

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

23343120340 is a wasteful number, since it uses less digits than its factorization.

23343120340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167156026 (or 1167156024 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 23343120340 its reverse (4302134332), we get a palindrome (27645254672).

The spelling of 23343120340 in words is "twenty-three billion, three hundred forty-three million, one hundred twenty thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 1167156017 2334312034 4668624068 5835780085 11671560170 23343120340