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145253260 = 225157167277
BaseRepresentation
bin10001010100001…
…10001110001100
3101010022122000101
420222012032030
5244141101020
622225140444
73412426615
oct1052061614
9333278011
10145253260
1174a9aa19
124078a724
1324129499
1415410c0c
15cb4300a
hex8a8638c

145253260 has 48 divisors (see below), whose sum is σ = 309927744. Its totient is φ = 57178368.

The previous prime is 145253243. The next prime is 145253281. The reversal of 145253260 is 62352541.

It is an unprimeable number.

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, 524242 + ... + 524518.

It is an arithmetic number, because the mean of its divisors is an integer number (6456828).

Almost surely, 2145253260 is an apocalyptic number.

145253260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145253260 is an abundant number, since it is smaller than the sum of its proper divisors (164674484).

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

145253260 is a wasteful number, since it uses less digits than its factorization.

145253260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610 (or 608 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 145253260 is about 12052.1060400247. The cubic root of 145253260 is about 525.6644768528.

The spelling of 145253260 in words is "one hundred forty-five million, two hundred fifty-three thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 157 167 277 314 334 554 628 668 785 835 1108 1385 1570 1670 2770 3140 3340 5540 26219 43489 46259 52438 86978 92518 104876 131095 173956 185036 217445 231295 262190 434890 462590 524380 869780 925180 7262663 14525326 29050652 36313315 72626630 145253260