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23142232430 = 2517683199313
BaseRepresentation
bin10101100011011000…
…100111000101101110
32012201211012012210122
4111203120213011232
5334343402414210
614344214204542
71446325505252
oct254330470556
965654165718
1023142232430
1198a6206829
12459a353752
13224a69b675
141197754262
15906a57b55
hex56362716e

23142232430 has 32 divisors (see below), whose sum is σ = 44171171424. Its totient is φ = 8699570176.

The previous prime is 23142232411. The next prime is 23142232433. The reversal of 23142232430 is 3423224132.

It is a self number, because there is not a number n which added to its sum of digits gives 23142232430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23142232433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16454 + ... + 215766.

It is an arithmetic number, because the mean of its divisors is an integer number (1380349107).

Almost surely, 223142232430 is an apocalyptic number.

23142232430 is a deficient number, since it is larger than the sum of its proper divisors (21028938994).

23142232430 is a wasteful number, since it uses less digits than its factorization.

23142232430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200020.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 23142232430 its reverse (3423224132), we get a palindrome (26565456562).

The spelling of 23142232430 in words is "twenty-three billion, one hundred forty-two million, two hundred thirty-two thousand, four hundred thirty".

Divisors: 1 2 5 10 17 34 85 170 683 1366 3415 6830 11611 23222 58055 116110 199313 398626 996565 1993130 3388321 6776642 16941605 33883210 136130779 272261558 680653895 1361307790 2314223243 4628446486 11571116215 23142232430