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145453630 = 2572077909
BaseRepresentation
bin10001010101101…
…11001000111110
3101010200210212111
420222313020332
5244214004010
622233324234
73414223030
oct1052671076
9333623774
10145453630
1175117513
124086667a
132419974a
1415463c50
15cb8258a
hex8ab723e

145453630 has 16 divisors (see below), whose sum is σ = 299219040. Its totient is φ = 49869792.

The previous prime is 145453621. The next prime is 145453639. The reversal of 145453630 is 36354541.

It is an interprime number because it is at equal distance from previous prime (145453621) and next prime (145453639).

It is a junction number, because it is equal to n+sod(n) for n = 145453592 and 145453601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145453639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1038885 + ... + 1039024.

It is an arithmetic number, because the mean of its divisors is an integer number (18701190).

Almost surely, 2145453630 is an apocalyptic number.

145453630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145453630 is an abundant number, since it is smaller than the sum of its proper divisors (153765410).

145453630 is a wasteful number, since it uses less digits than its factorization.

145453630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2077923.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 145453630 is about 12060.4158303103. The cubic root of 145453630 is about 525.9060755541.

The spelling of 145453630 in words is "one hundred forty-five million, four hundred fifty-three thousand, six hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 2077909 4155818 10389545 14545363 20779090 29090726 72726815 145453630