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23097480 = 2335731887
BaseRepresentation
bin101100000011…
…1000010001000
31121110110210020
41120013002020
521403104410
62143020440
7400216410
oct130070210
947413706
1023097480
111204652a
12789a720
134a29263
1430d3640
152063a70
hex1607088

23097480 has 128 divisors (see below), whose sum is σ = 81838080. Its totient is φ = 5103360.

The previous prime is 23097479. The next prime is 23097593. The reversal of 23097480 is 8479032.

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, 25597 + ... + 26483.

It is an arithmetic number, because the mean of its divisors is an integer number (639360).

Almost surely, 223097480 is an apocalyptic number.

23097480 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 23097480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40919040).

23097480 is an abundant number, since it is smaller than the sum of its proper divisors (58740600).

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

23097480 is a wasteful number, since it uses less digits than its factorization.

23097480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939 (or 935 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 23097480 is about 4805.9837702597. The cubic root of 23097480 is about 284.7879000561.

The spelling of 23097480 in words is "twenty-three million, ninety-seven thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 31 35 40 42 56 60 62 70 84 93 105 120 124 140 155 168 186 210 217 248 280 310 372 420 434 465 620 651 744 840 868 887 930 1085 1240 1302 1736 1774 1860 2170 2604 2661 3255 3548 3720 4340 4435 5208 5322 6209 6510 7096 8680 8870 10644 12418 13020 13305 17740 18627 21288 24836 26040 26610 27497 31045 35480 37254 49672 53220 54994 62090 74508 82491 93135 106440 109988 124180 137485 149016 164982 186270 192479 219976 248360 274970 329964 372540 384958 412455 549940 577437 659928 745080 769916 824910 962395 1099880 1154874 1539832 1649820 1924790 2309748 2887185 3299640 3849580 4619496 5774370 7699160 11548740 23097480