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145027260 = 223657329
BaseRepresentation
bin10001010010011…
…11000010111100
3101002220011000000
420221033002330
5244111333020
622220234300
73410466000
oct1051170274
9332804000
10145027260
1174956144
124069b990
132407a661
1415392700
15caeb090
hex8a4f0bc

145027260 has 336 divisors, whose sum is σ = 550872000. Its totient is φ = 32006016.

The previous prime is 145027243. The next prime is 145027271. The reversal of 145027260 is 62720541.

It is a super-2 number, since 2×1450272602 = 42065812286215200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 111 ways as a sum of consecutive naturals, for example, 5000926 + ... + 5000954.

It is an arithmetic number, because the mean of its divisors is an integer number (1639500).

Almost surely, 2145027260 is an apocalyptic number.

145027260 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 145027260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275436000).

145027260 is an abundant number, since it is smaller than the sum of its proper divisors (405844740).

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

145027260 is an equidigital number, since it uses as much as digits as its factorization.

145027260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77 (or 46 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 145027260 is about 12042.7264354879. The cubic root of 145027260 is about 525.3917076704.

The spelling of 145027260 in words is "one hundred forty-five million, twenty-seven thousand, two hundred sixty".