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23001532 = 2221127253
BaseRepresentation
bin101011110111…
…1100110111100
31121021121011121
41113233212330
521342022112
62141000324
7366336601
oct127574674
947247147
1023001532
1111a90434
1278530a4
1349c4698
1430aa6a8
152045407
hex15ef9bc

23001532 has 12 divisors (see below), whose sum is σ = 40444936. Its totient is φ = 11445840.

The previous prime is 23001509. The next prime is 23001551. The reversal of 23001532 is 23510032.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 12783 + ... + 14470.

Almost surely, 223001532 is an apocalyptic number.

It is an amenable number.

23001532 is a deficient number, since it is larger than the sum of its proper divisors (17443404).

23001532 is a wasteful number, since it uses less digits than its factorization.

23001532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27468 (or 27466 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 23001532 is about 4795.9912426943. The cubic root of 23001532 is about 284.3930120540.

Adding to 23001532 its reverse (23510032), we get a palindrome (46511564).

The spelling of 23001532 in words is "twenty-three million, one thousand, five hundred thirty-two".

Divisors: 1 2 4 211 422 844 27253 54506 109012 5750383 11500766 23001532