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23035530 = 2357432551
BaseRepresentation
bin101011111011…
…1111010001010
31121100022210210
41113313322022
521344114110
62141421550
7366540660
oct127677212
947308723
1023035530
1112003a31
12786a8b6
134a06cbb
1430b8c30
152050520
hex15f7e8a

23035530 has 64 divisors (see below), whose sum is σ = 64677888. Its totient is φ = 5140800.

The previous prime is 23035517. The next prime is 23035553. The reversal of 23035530 is 3553032.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 23035497 and 23035506.

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, 7755 + ... + 10305.

It is an arithmetic number, because the mean of its divisors is an integer number (1010592).

Almost surely, 223035530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23035530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32338944).

23035530 is an abundant number, since it is smaller than the sum of its proper divisors (41642358).

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

23035530 is a wasteful number, since it uses less digits than its factorization.

23035530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2611.

The product of its (nonzero) digits is 1350, while the sum is 21.

The square root of 23035530 is about 4799.5343524138. The cubic root of 23035530 is about 284.5330611863.

Adding to 23035530 its reverse (3553032), we get a palindrome (26588562).

The spelling of 23035530 in words is "twenty-three million, thirty-five thousand, five hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 43 70 86 105 129 210 215 258 301 430 602 645 903 1290 1505 1806 2551 3010 4515 5102 7653 9030 12755 15306 17857 25510 35714 38265 53571 76530 89285 107142 109693 178570 219386 267855 329079 535710 548465 658158 767851 1096930 1535702 1645395 2303553 3290790 3839255 4607106 7678510 11517765 23035530