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145030270 = 25711188351
BaseRepresentation
bin10001010010011…
…11110001111110
3101002220022010111
420221033301332
5244111432040
622220300234
73410510530
oct1051176176
9332808114
10145030270
1174958430
12406a167a
132407bb38
1415393850
15caebdea
hex8a4fc7e

145030270 has 32 divisors (see below), whose sum is σ = 325472256. Its totient is φ = 45204000.

The previous prime is 145030267. The next prime is 145030273. The reversal of 145030270 is 72030541.

It is an interprime number because it is at equal distance from previous prime (145030267) and next prime (145030273).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145030273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93406 + ... + 94945.

It is an arithmetic number, because the mean of its divisors is an integer number (10171008).

Almost surely, 2145030270 is an apocalyptic number.

145030270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145030270 is an abundant number, since it is smaller than the sum of its proper divisors (180441986).

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

145030270 is a wasteful number, since it uses less digits than its factorization.

145030270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188376.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 145030270 is about 12042.8514065399. The cubic root of 145030270 is about 525.3953424309.

The spelling of 145030270 in words is "one hundred forty-five million, thirty thousand, two hundred seventy".

Divisors: 1 2 5 7 10 11 14 22 35 55 70 77 110 154 385 770 188351 376702 941755 1318457 1883510 2071861 2636914 4143722 6592285 10359305 13184570 14503027 20718610 29006054 72515135 145030270