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230644436 = 221110948091
BaseRepresentation
bin11011011111101…
…01101011010100
3121001222221200112
431233311223110
5433021110221
634515302152
75500305521
oct1557655324
9531887615
10230644436
11109213640
12652aa958
1338a266c9
14228bc148
15153ae15b
hexdbf5ad4

230644436 has 24 divisors (see below), whose sum is σ = 444370080. Its totient is φ = 103874400.

The previous prime is 230644411. The next prime is 230644459. The reversal of 230644436 is 634446032.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19250 + ... + 28841.

It is an arithmetic number, because the mean of its divisors is an integer number (18515420).

Almost surely, 2230644436 is an apocalyptic number.

It is an amenable number.

230644436 is a deficient number, since it is larger than the sum of its proper divisors (213725644).

230644436 is a wasteful number, since it uses less digits than its factorization.

230644436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48215 (or 48213 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 32.

The square root of 230644436 is about 15186.9824520871. The cubic root of 230644436 is about 613.2642674540.

It can be divided in two parts, 230644 and 436, that multiplied together give a square (100560784 = 100282).

The spelling of 230644436 in words is "two hundred thirty million, six hundred forty-four thousand, four hundred thirty-six".

Divisors: 1 2 4 11 22 44 109 218 436 1199 2398 4796 48091 96182 192364 529001 1058002 2116004 5241919 10483838 20967676 57661109 115322218 230644436