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23702490 = 2335712541
BaseRepresentation
bin101101001101…
…0101111011010
31122121012201000
41122122233122
522031434430
62204005430
7405316320
oct132325732
948535630
1023702490
111241a039
127b30876
134bab756
14320dd10
152132e60
hex169abda

23702490 has 64 divisors (see below), whose sum is σ = 72241920. Its totient is φ = 5417280.

The previous prime is 23702479. The next prime is 23702491. The reversal of 23702490 is 9420732.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (23702491) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4381 + ... + 8160.

It is an arithmetic number, because the mean of its divisors is an integer number (1128780).

Almost surely, 223702490 is an apocalyptic number.

23702490 is an abundant number, since it is smaller than the sum of its proper divisors (48539430).

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

23702490 is a wasteful number, since it uses less digits than its factorization.

23702490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12564 (or 12558 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 23702490 is about 4868.5203090878. The cubic root of 23702490 is about 287.2530557522.

The spelling of 23702490 in words is "twenty-three million, seven hundred two thousand, four hundred ninety".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 27 30 35 42 45 54 63 70 90 105 126 135 189 210 270 315 378 630 945 1890 12541 25082 37623 62705 75246 87787 112869 125410 175574 188115 225738 263361 338607 376230 438935 526722 564345 677214 790083 877870 1128690 1316805 1580166 1693035 2370249 2633610 3386070 3950415 4740498 7900830 11851245 23702490