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145563836 = 221121115679
BaseRepresentation
bin10001010110100…
…10000010111100
3101010220102001012
420223102002330
5244231020321
622235534352
73415162235
oct1053220274
9333812035
10145563836
11751922a0
12408ba3b8
1324207962
141549208c
15cba505b
hex8ad20bc

145563836 has 24 divisors (see below), whose sum is σ = 279229440. Its totient is φ = 65847600.

The previous prime is 145563833. The next prime is 145563839. The reversal of 145563836 is 638365541.

It is an interprime number because it is at equal distance from previous prime (145563833) and next prime (145563839).

It is a junction number, because it is equal to n+sod(n) for n = 145563793 and 145563802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145563833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1445 + ... + 17123.

It is an arithmetic number, because the mean of its divisors is an integer number (11634560).

Almost surely, 2145563836 is an apocalyptic number.

It is an amenable number.

145563836 is a deficient number, since it is larger than the sum of its proper divisors (133665604).

145563836 is a wasteful number, since it uses less digits than its factorization.

145563836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15905 (or 15903 counting only the distinct ones).

The product of its digits is 259200, while the sum is 41.

The square root of 145563836 is about 12064.9838789780. The cubic root of 145563836 is about 526.0388632873.

The spelling of 145563836 in words is "one hundred forty-five million, five hundred sixty-three thousand, eight hundred thirty-six".

Divisors: 1 2 4 11 22 44 211 422 844 2321 4642 9284 15679 31358 62716 172469 344938 689876 3308269 6616538 13233076 36390959 72781918 145563836