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45531223230 = 23519639712487
BaseRepresentation
bin101010011001110111…
…110101010010111110
311100112011000210100010
4222121313311102332
51221221443120410
632530004044050
73201210004023
oct523167652276
9140464023303
1045531223230
1118345208a09
1289a8393626
1343a7ca8c0c
1422bd03154a
1512b73c2c20
hexa99df54be

45531223230 has 64 divisors (see below), whose sum is σ = 115053442560. Its totient is φ = 11499905664.

The previous prime is 45531223207. The next prime is 45531223253. The reversal of 45531223230 is 3232213554.

It is an interprime number because it is at equal distance from previous prime (45531223207) and next prime (45531223253).

It is a super-3 number, since 3×455312232303 (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 3640047 + ... + 3652533.

It is an arithmetic number, because the mean of its divisors is an integer number (1797710040).

Almost surely, 245531223230 is an apocalyptic number.

45531223230 is an abundant number, since it is smaller than the sum of its proper divisors (69522219330).

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

45531223230 is a wasteful number, since it uses less digits than its factorization.

45531223230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18913.

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 45531223230 its reverse (3232213554), we get a palindrome (48763436784).

The spelling of 45531223230 in words is "forty-five billion, five hundred thirty-one million, two hundred twenty-three thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 95 114 190 285 570 6397 12487 12794 19191 24974 31985 37461 38382 62435 63970 74922 95955 121543 124870 187305 191910 237253 243086 364629 374610 474506 607715 711759 729258 1186265 1215430 1423518 1823145 2372530 3558795 3646290 7117590 79879339 159758678 239638017 399396695 479276034 798793390 1198190085 1517707441 2396380170 3035414882 4553122323 7588537205 9106244646 15177074410 22765611615 45531223230