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143490880 = 26513172029
BaseRepresentation
bin10001000110101…
…11111101000000
3101000000002111001
420203113331000
5243213202010
622123301344
73361436521
oct1043277500
9330002431
10143490880
1173aa6905
124007a854
1323960260
14150b2848
15c8e5c3a
hex88d7f40

143490880 has 112 divisors (see below), whose sum is σ = 389808720. Its totient is φ = 49840128.

The previous prime is 143490833. The next prime is 143490881. The reversal of 143490880 is 88094341.

It can be written as a sum of positive squares in 8 ways, for example, as 7441984 + 136048896 = 2728^2 + 11664^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143490881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69706 + ... + 71734.

It is an arithmetic number, because the mean of its divisors is an integer number (3480435).

Almost surely, 2143490880 is an apocalyptic number.

143490880 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 143490880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194904360).

143490880 is an abundant number, since it is smaller than the sum of its proper divisors (246317840).

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

143490880 is a wasteful number, since it uses less digits than its factorization.

143490880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2076 (or 2066 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 143490880 is about 11978.7678832174. The cubic root of 143490880 is about 523.5298309628.

The spelling of 143490880 in words is "one hundred forty-three million, four hundred ninety thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 13 16 17 20 26 32 34 40 52 64 65 68 80 85 104 130 136 160 170 208 221 260 272 320 340 416 442 520 544 680 832 884 1040 1088 1105 1360 1768 2029 2080 2210 2720 3536 4058 4160 4420 5440 7072 8116 8840 10145 14144 16232 17680 20290 26377 32464 34493 35360 40580 52754 64928 68986 70720 81160 105508 129856 131885 137972 162320 172465 211016 263770 275944 324640 344930 422032 448409 527540 551888 649280 689860 844064 896818 1055080 1103776 1379720 1688128 1793636 2110160 2207552 2242045 2759440 3587272 4220320 4484090 5518880 7174544 8440640 8968180 11037760 14349088 17936360 28698176 35872720 71745440 143490880