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23002001 = 112390917
BaseRepresentation
bin101011110111…
…1101110010001
31121021121210222
41113233232101
521342031001
62141002425
7366341141
oct127575621
947247728
1023002001
1111a90820
127853415
1349c4969
1430aa921
15204561b
hex15efb91

23002001 has 8 divisors (see below), whose sum is σ = 26184384. Its totient is φ = 20001520.

The previous prime is 23001997. The next prime is 23002009. The reversal of 23002001 is 10020032.

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

It is not a de Polignac number, because 23002001 - 22 = 23001997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23002001.

It is not an unprimeable number, because it can be changed into a prime (23002009) 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, 45206 + ... + 45711.

It is an arithmetic number, because the mean of its divisors is an integer number (3273048).

Almost surely, 223002001 is an apocalyptic number.

It is an amenable number.

23002001 is a deficient number, since it is larger than the sum of its proper divisors (3182383).

23002001 is a wasteful number, since it uses less digits than its factorization.

23002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90951.

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 23002001 is about 4796.0401374467. The cubic root of 23002001 is about 284.3949449602.

Adding to 23002001 its reverse (10020032), we get a palindrome (33022033).

It can be divided in two parts, 2 and 3002001, that added together give a palindrome (3002003).

The spelling of 23002001 in words is "twenty-three million, two thousand, one".

Divisors: 1 11 23 253 90917 1000087 2091091 23002001