Search a number
-
+
23276940 = 22351392791
BaseRepresentation
bin101100011001…
…0110110001100
31121210120221220
41120302312030
521424330230
62150523340
7401564541
oct130626614
947716856
1023276940
1112159345
127966550
134a8cb4b
14313cbc8
15209bd10
hex1632d8c

23276940 has 48 divisors (see below), whose sum is σ = 65667840. Its totient is φ = 6160320.

The previous prime is 23276921. The next prime is 23276947. The reversal of 23276940 is 4967232.

It is not an unprimeable number, because it can be changed into a prime (23276947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6945 + ... + 9735.

It is an arithmetic number, because the mean of its divisors is an integer number (1368080).

Almost surely, 223276940 is an apocalyptic number.

23276940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23276940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32833920).

23276940 is an abundant number, since it is smaller than the sum of its proper divisors (42390900).

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

23276940 is a wasteful number, since it uses less digits than its factorization.

23276940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2942 (or 2940 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 23276940 is about 4824.6181196028. The cubic root of 23276940 is about 285.5235681984.

The spelling of 23276940 in words is "twenty-three million, two hundred seventy-six thousand, nine hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 139 278 417 556 695 834 1390 1668 2085 2780 2791 4170 5582 8340 8373 11164 13955 16746 27910 33492 41865 55820 83730 167460 387949 775898 1163847 1551796 1939745 2327694 3879490 4655388 5819235 7758980 11638470 23276940