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23022870 = 23513219239
BaseRepresentation
bin101011111010…
…0110100010110
31121022200102220
41113310310112
521343212440
62141243210
7366456033
oct127646426
947280386
1023022870
1111aa5472
127863506
134a01300
1430b438a
15204b8d0
hex15f4d16

23022870 has 96 divisors (see below), whose sum is σ = 63244800. Its totient is φ = 5346432.

The previous prime is 23022859. The next prime is 23022887. The reversal of 23022870 is 7822032.

It is a self number, because there is not a number n which added to its sum of digits gives 23022870.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 96211 + ... + 96449.

It is an arithmetic number, because the mean of its divisors is an integer number (658800).

Almost surely, 223022870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23022870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31622400).

23022870 is an abundant number, since it is smaller than the sum of its proper divisors (40221930).

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

23022870 is a wasteful number, since it uses less digits than its factorization.

23022870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 23022870 is about 4798.2152932106. The cubic root of 23022870 is about 284.4809265250.

The spelling of 23022870 in words is "twenty-three million, twenty-two thousand, eight hundred seventy".

Divisors: 1 2 3 5 6 10 13 15 19 26 30 38 39 57 65 78 95 114 130 169 190 195 239 247 285 338 390 478 494 507 570 717 741 845 1014 1195 1235 1434 1482 1690 2390 2470 2535 3107 3211 3585 3705 4541 5070 6214 6422 7170 7410 9082 9321 9633 13623 15535 16055 18642 19266 22705 27246 31070 32110 40391 45410 46605 48165 59033 68115 80782 93210 96330 118066 121173 136230 177099 201955 242346 295165 354198 403910 590330 605865 767429 885495 1211730 1534858 1770990 2302287 3837145 4604574 7674290 11511435 23022870