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23032002001 = 154914868949
BaseRepresentation
bin10101011100110100…
…000111010111010001
32012110010202221002011
4111130310013113101
5334132143031001
614325235422521
71443516533611
oct253464072721
965403687064
1023032002001
119849a67aa8
124569454a41
1322308b5468
141186c5ca41
158ec031d51
hex55cd075d1

23032002001 has 4 divisors (see below), whose sum is σ = 23046872500. Its totient is φ = 23017131504.

The previous prime is 23032001977. The next prime is 23032002061. The reversal of 23032002001 is 10020023032.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7656250000 + 15375752001 = 87500^2 + 123999^2 .

It is a cyclic number.

It is not a de Polignac number, because 23032002001 - 219 = 23031477713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23032002061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7432926 + ... + 7436023.

It is an arithmetic number, because the mean of its divisors is an integer number (5761718125).

Almost surely, 223032002001 is an apocalyptic number.

It is an amenable number.

23032002001 is a deficient number, since it is larger than the sum of its proper divisors (14870499).

23032002001 is a wasteful number, since it uses less digits than its factorization.

23032002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14870498.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 23032002001 its reverse (10020023032), we get a palindrome (33052025033).

The spelling of 23032002001 in words is "twenty-three billion, thirty-two million, two thousand, one".

Divisors: 1 1549 14868949 23032002001