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22994680 = 2352943461
BaseRepresentation
bin101011110110…
…1111011111000
31121021020202211
41113231323320
521341312210
62140504504
7366310612
oct127557370
947236684
1022994680
1111a86275
12784b134
1349c1527
1430a7db2
15204338a
hex15edef8

22994680 has 64 divisors (see below), whose sum is σ = 54885600. Its totient is φ = 8655360.

The previous prime is 22994677. The next prime is 22994683. The reversal of 22994680 is 8649922.

It is an interprime number because it is at equal distance from previous prime (22994677) and next prime (22994683).

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22994683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49650 + ... + 50110.

Almost surely, 222994680 is an apocalyptic number.

22994680 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 22994680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27442800).

22994680 is an abundant number, since it is smaller than the sum of its proper divisors (31890920).

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

22994680 is a wasteful number, since it uses less digits than its factorization.

22994680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544 (or 540 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 22994680 is about 4795.2768428945. The cubic root of 22994680 is about 284.3647696678.

The spelling of 22994680 in words is "twenty-two million, nine hundred ninety-four thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 29 40 43 58 86 116 145 172 215 232 290 344 430 461 580 860 922 1160 1247 1720 1844 2305 2494 3688 4610 4988 6235 9220 9976 12470 13369 18440 19823 24940 26738 39646 49880 53476 66845 79292 99115 106952 133690 158584 198230 267380 396460 534760 574867 792920 1149734 2299468 2874335 4598936 5748670 11497340 22994680