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145207107 = 3313733917
BaseRepresentation
bin10001010011110…
…10111101000011
3101010020021201000
420221322331003
5244133111412
622224143043
73412145223
oct1051727503
9333207630
10145207107
1174a69281
1240767a83
1324111486
14153dc083
15cb344dc
hex8a7af43

145207107 has 16 divisors (see below), whose sum is σ = 215333280. Its totient is φ = 96709536.

The previous prime is 145207103. The next prime is 145207109. The reversal of 145207107 is 701702541.

It is not a de Polignac number, because 145207107 - 22 = 145207103 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (145207103) 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, 35113 + ... + 39029.

It is an arithmetic number, because the mean of its divisors is an integer number (13458330).

Almost surely, 2145207107 is an apocalyptic number.

145207107 is a deficient number, since it is larger than the sum of its proper divisors (70126173).

145207107 is a wasteful number, since it uses less digits than its factorization.

145207107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5299 (or 5293 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 145207107 is about 12050.1911603094. The cubic root of 145207107 is about 525.6087958016.

Adding to 145207107 its reverse (701702541), we get a palindrome (846909648).

The spelling of 145207107 in words is "one hundred forty-five million, two hundred seven thousand, one hundred seven".

Divisors: 1 3 9 27 1373 3917 4119 11751 12357 35253 37071 105759 5378041 16134123 48402369 145207107