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23902801 = 1313713421
BaseRepresentation
bin101101100101…
…1101001010001
31122222101110221
41123023221101
522104342201
62212153041
7410112316
oct133135121
948871427
1023902801
111254658a
128008781
134c4b990
143262d0d
1521724a1
hex16cba51

23902801 has 8 divisors (see below), whose sum is σ = 25931304. Its totient is φ = 21901440.

The previous prime is 23902787. The next prime is 23902807. The reversal of 23902801 is 10820932.

It can be written as a sum of positive squares in 4 ways, for example, as 5755201 + 18147600 = 2399^2 + 4260^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23902801 - 211 = 23900753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23902807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4930 + ... + 8491.

It is an arithmetic number, because the mean of its divisors is an integer number (3241413).

Almost surely, 223902801 is an apocalyptic number.

It is an amenable number.

23902801 is a deficient number, since it is larger than the sum of its proper divisors (2028503).

23902801 is a wasteful number, since it uses less digits than its factorization.

23902801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13571.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 23902801 is about 4889.0490895470. The cubic root of 23902801 is about 288.0599838086.

The spelling of 23902801 in words is "twenty-three million, nine hundred two thousand, eight hundred one".

Divisors: 1 13 137 1781 13421 174473 1838677 23902801