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153345040 = 24529157421
BaseRepresentation
bin10010010001111…
…01110000010000
3101200112201211221
421020331300100
5303224020130
623114414424
73541261042
oct1110756020
9350481757
10153345040
1179617442
1243431414
1325a00614
1416519a92
15d6e087a
hex923dc10

153345040 has 80 divisors (see below), whose sum is σ = 372052080. Its totient is φ = 58705920.

The previous prime is 153345013. The next prime is 153345047. The reversal of 153345040 is 40543351.

It can be written as a sum of positive squares in 8 ways, for example, as 38340864 + 115004176 = 6192^2 + 10724^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 153344996 and 153345014.

It is not an unprimeable number, because it can be changed into a prime (153345047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 364030 + ... + 364450.

It is an arithmetic number, because the mean of its divisors is an integer number (4650651).

Almost surely, 2153345040 is an apocalyptic number.

153345040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 153345040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186026040).

153345040 is an abundant number, since it is smaller than the sum of its proper divisors (218707040).

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

153345040 is a wasteful number, since it uses less digits than its factorization.

153345040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620 (or 614 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 153345040 is about 12383.2564376258. The cubic root of 153345040 is about 535.2498789054.

Adding to 153345040 its reverse (40543351), we get a palindrome (193888391).

The spelling of 153345040 in words is "one hundred fifty-three million, three hundred forty-five thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 29 40 58 80 116 145 157 232 290 314 421 464 580 628 785 842 1160 1256 1570 1684 2105 2320 2512 3140 3368 4210 4553 6280 6736 8420 9106 12209 12560 16840 18212 22765 24418 33680 36424 45530 48836 61045 66097 72848 91060 97672 122090 132194 182120 195344 244180 264388 330485 364240 488360 528776 660970 976720 1057552 1321940 1916813 2643880 3833626 5287760 7667252 9584065 15334504 19168130 30669008 38336260 76672520 153345040