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23075780 = 22571331409
BaseRepresentation
bin101100000000…
…1101111000100
31121102101000112
41120001233010
521401411110
62142332152
7400066220
oct130015704
947371015
1023075780
11120311a2
12788a058
134a1c410
1430c9780
15205c405
hex1601bc4

23075780 has 96 divisors (see below), whose sum is σ = 61716480. Its totient is φ = 7050240.

The previous prime is 23075777. The next prime is 23075797. The reversal of 23075780 is 8757032.

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, 56216 + ... + 56624.

It is an arithmetic number, because the mean of its divisors is an integer number (642880).

Almost surely, 223075780 is an apocalyptic number.

23075780 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 23075780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30858240).

23075780 is an abundant number, since it is smaller than the sum of its proper divisors (38640700).

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

23075780 is a wasteful number, since it uses less digits than its factorization.

23075780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469 (or 467 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 23075780 is about 4803.7256374610. The cubic root of 23075780 is about 284.6986863732.

The spelling of 23075780 in words is "twenty-three million, seventy-five thousand, seven hundred eighty".

Divisors: 1 2 4 5 7 10 13 14 20 26 28 31 35 52 62 65 70 91 124 130 140 155 182 217 260 310 364 403 409 434 455 620 806 818 868 910 1085 1612 1636 1820 2015 2045 2170 2821 2863 4030 4090 4340 5317 5642 5726 8060 8180 10634 11284 11452 12679 14105 14315 21268 25358 26585 28210 28630 37219 50716 53170 56420 57260 63395 74438 88753 106340 126790 148876 164827 177506 186095 253580 329654 355012 372190 443765 659308 744380 824135 887530 1153789 1648270 1775060 2307578 3296540 4615156 5768945 11537890 23075780