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23130510 = 23513127467
BaseRepresentation
bin101100000111…
…1000110001110
31121112011002120
41120033012032
521410134020
62143433410
7400414614
oct130170616
947464076
1023130510
1112069327
1278b5866
134a3b2c0
1431016b4
15206d740
hex160f18e

23130510 has 64 divisors (see below), whose sum is σ = 60383232. Its totient is φ = 5636736.

The previous prime is 23130509. The next prime is 23130521. The reversal of 23130510 is 1503132.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 23130510.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49297 + ... + 49763.

It is an arithmetic number, because the mean of its divisors is an integer number (943488).

Almost surely, 223130510 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23130510, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30191616).

23130510 is an abundant number, since it is smaller than the sum of its proper divisors (37252722).

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

23130510 is a wasteful number, since it uses less digits than its factorization.

23130510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 23130510 is about 4809.4188838154. The cubic root of 23130510 is about 284.9235867780.

Adding to 23130510 its reverse (1503132), we get a palindrome (24633642).

The spelling of 23130510 in words is "twenty-three million, one hundred thirty thousand, five hundred ten".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 127 130 195 254 381 390 467 635 762 934 1270 1401 1651 1905 2335 2802 3302 3810 4670 4953 6071 7005 8255 9906 12142 14010 16510 18213 24765 30355 36426 49530 59309 60710 91065 118618 177927 182130 296545 355854 593090 771017 889635 1542034 1779270 2313051 3855085 4626102 7710170 11565255 23130510