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23995980 = 22335371201
BaseRepresentation
bin101101110001…
…0011001001100
31200011010022000
41123202121030
522120332410
62214152300
7410651061
oct133423114
950133260
1023995980
11125aa598
128052690
134c82208
143288c68
15218edc0
hex16e264c

23995980 has 96 divisors (see below), whose sum is σ = 76735680. Its totient is φ = 6220800.

The previous prime is 23995859. The next prime is 23995999. The reversal of 23995980 is 8959932.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 19380 + ... + 20580.

It is an arithmetic number, because the mean of its divisors is an integer number (799330).

Almost surely, 223995980 is an apocalyptic number.

23995980 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 23995980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38367840).

23995980 is an abundant number, since it is smaller than the sum of its proper divisors (52739700).

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

23995980 is a wasteful number, since it uses less digits than its factorization.

23995980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256 (or 1248 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The square root of 23995980 is about 4898.5691788521. The cubic root of 23995980 is about 288.4338080420.

The spelling of 23995980 in words is "twenty-three million, nine hundred ninety-five thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 37 45 54 60 74 90 108 111 135 148 180 185 222 270 333 370 444 540 555 666 740 999 1110 1201 1332 1665 1998 2220 2402 3330 3603 3996 4804 4995 6005 6660 7206 9990 10809 12010 14412 18015 19980 21618 24020 32427 36030 43236 44437 54045 64854 72060 88874 108090 129708 133311 162135 177748 216180 222185 266622 324270 399933 444370 533244 648540 666555 799866 888740 1199799 1333110 1599732 1999665 2399598 2666220 3999330 4799196 5998995 7998660 11997990 23995980