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23085450 = 2325229261
BaseRepresentation
bin101100000010…
…0000110001010
31121102212021200
41120010012022
521402213300
62142445030
7400136343
oct130040612
947385250
1023085450
1112038493
127893776
134a2393b
1430cd0ca
152060200
hex160418a

23085450 has 108 divisors (see below), whose sum is σ = 65288418. Its totient is φ = 5846400.

The previous prime is 23085449. The next prime is 23085463. The reversal of 23085450 is 5458032.

It can be written as a sum of positive squares in 9 ways, for example, as 16641 + 23068809 = 129^2 + 4803^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 378420 + ... + 378480.

Almost surely, 223085450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23085450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32644209).

23085450 is an abundant number, since it is smaller than the sum of its proper divisors (42202968).

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

23085450 is a wasteful number, since it uses less digits than its factorization.

23085450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 23085450 is about 4804.7320424765. The cubic root of 23085450 is about 284.7384488692.

The spelling of 23085450 in words is "twenty-three million, eighty-five thousand, four hundred fifty".

Divisors: 1 2 3 5 6 9 10 15 18 25 29 30 45 50 58 61 75 87 90 122 145 150 174 183 225 261 290 305 366 435 450 522 549 610 725 841 870 915 1098 1305 1450 1525 1682 1769 1830 2175 2523 2610 2745 3050 3538 4205 4350 4575 5046 5307 5490 6525 7569 8410 8845 9150 10614 12615 13050 13725 15138 15921 17690 21025 25230 26535 27450 31842 37845 42050 44225 51301 53070 63075 75690 79605 88450 102602 126150 132675 153903 159210 189225 256505 265350 307806 378450 398025 461709 513010 769515 796050 923418 1282525 1539030 2308545 2565050 3847575 4617090 7695150 11542725 23085450