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23213142238 = 2111381164833
BaseRepresentation
bin10101100111100111…
…000111000011011110
32012220202121210202211
4111213213013003132
5340020031022423
614355230111034
71451146311346
oct254747070336
965822553684
1023213142238
119932239380
1245ba04b47a
13225c298330
1411a2d31d26
1590cdb310d
hex5679c70de

23213142238 has 16 divisors (see below), whose sum is σ = 40907076336. Its totient is φ = 9739779840.

The previous prime is 23213142233. The next prime is 23213142257. The reversal of 23213142238 is 83224131232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23213142233) 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, 40582131 + ... + 40582702.

It is an arithmetic number, because the mean of its divisors is an integer number (2556692271).

Almost surely, 223213142238 is an apocalyptic number.

23213142238 is a deficient number, since it is larger than the sum of its proper divisors (17693934098).

23213142238 is a wasteful number, since it uses less digits than its factorization.

23213142238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81164859.

The product of its digits is 13824, while the sum is 31.

The spelling of 23213142238 in words is "twenty-three billion, two hundred thirteen million, one hundred forty-two thousand, two hundred thirty-eight".

Divisors: 1 2 11 13 22 26 143 286 81164833 162329666 892813163 1055142829 1785626326 2110285658 11606571119 23213142238