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23002012 = 22113771199
BaseRepresentation
bin101011110111…
…1101110011100
31121021121211101
41113233232130
521342031022
62141002444
7366341155
oct127575634
947247741
1023002012
1111a90830
127853424
1349c4977
1430aa92c
152045627
hex15efb9c

23002012 has 48 divisors (see below), whose sum is σ = 45964800. Its totient is φ = 9979200.

The previous prime is 23002009. The next prime is 23002013. The reversal of 23002012 is 21020032.

It is a self number, because there is not a number n which added to its sum of digits gives 23002012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23002013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115489 + ... + 115687.

It is an arithmetic number, because the mean of its divisors is an integer number (957600).

Almost surely, 223002012 is an apocalyptic number.

23002012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

23002012 is a deficient number, since it is larger than the sum of its proper divisors (22962788).

23002012 is a wasteful number, since it uses less digits than its factorization.

23002012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322 (or 320 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 23002012 is about 4796.0412842260. The cubic root of 23002012 is about 284.3949902946.

Adding to 23002012 its reverse (21020032), we get a palindrome (44022044).

It can be divided in two parts, 230020 and 12, that added together give a palindrome (230032).

The spelling of 23002012 in words is "twenty-three million, two thousand, twelve".

Divisors: 1 2 4 11 22 37 44 71 74 142 148 199 284 398 407 781 796 814 1562 1628 2189 2627 3124 4378 5254 7363 8756 10508 14129 14726 28258 28897 29452 56516 57794 80993 115588 155419 161986 310838 323972 522773 621676 1045546 2091092 5750503 11501006 23002012