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23403442044 = 2231950286837
BaseRepresentation
bin10101110010111101…
…000010111101111100
32020102000201001000210
4111302331002331330
5340412240121134
614430144552420
71455646655313
oct256275027574
966360631023
1023403442044
119a1a6a6444
124651922710
13228c837378
1411c030b27a
1591e9532e9
hex572f42f7c

23403442044 has 12 divisors (see below), whose sum is σ = 54608031464. Its totient is φ = 7801147344.

The previous prime is 23403442043. The next prime is 23403442063. The reversal of 23403442044 is 44024430432.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23403442043) 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, 975143407 + ... + 975143430.

Almost surely, 223403442044 is an apocalyptic number.

It is an amenable number.

23403442044 is an abundant number, since it is smaller than the sum of its proper divisors (31204589420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23403442044 is a wasteful number, since it uses less digits than its factorization.

23403442044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1950286844 (or 1950286842 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 30.

Adding to 23403442044 its reverse (44024430432), we get a palindrome (67427872476).

The spelling of 23403442044 in words is "twenty-three billion, four hundred three million, four hundred forty-two thousand, forty-four".

Divisors: 1 2 3 4 6 12 1950286837 3900573674 5850860511 7801147348 11701721022 23403442044