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107207145 = 345318539
BaseRepresentation
bin1100110001111…
…01100111101001
321110201200120000
412120331213221
5204421112040
614345453213
72441150163
oct630754751
9243650500
10107207145
1155574351
122baa1209
13192980a6
1410349933
15962a130
hex663d9e9

107207145 has 40 divisors (see below), whose sum is σ = 198401280. Its totient is φ = 55326240.

The previous prime is 107207129. The next prime is 107207147. The reversal of 107207145 is 541702701.

It is not a de Polignac number, because 107207145 - 24 = 107207129 is a prime.

It is a super-2 number, since 2×1072071452 = 22986743878102050, which contains 22 as substring.

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 (107207147) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8286 + ... + 16824.

It is an arithmetic number, because the mean of its divisors is an integer number (4960032).

Almost surely, 2107207145 is an apocalyptic number.

107207145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

107207145 is a deficient number, since it is larger than the sum of its proper divisors (91194135).

107207145 is an equidigital number, since it uses as much as digits as its factorization.

107207145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8587 (or 8578 counting only the distinct ones).

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

The square root of 107207145 is about 10354.0883229766. The cubic root of 107207145 is about 475.0521013948.

Adding to 107207145 its reverse (541702701), we get a palindrome (648909846).

The spelling of 107207145 in words is "one hundred seven million, two hundred seven thousand, one hundred forty-five".

Divisors: 1 3 5 9 15 27 31 45 81 93 135 155 279 405 465 837 1395 2511 4185 8539 12555 25617 42695 76851 128085 230553 264709 384255 691659 794127 1152765 1323545 2382381 3458295 3970635 7147143 11911905 21441429 35735715 107207145