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149210017 = 1129467743
BaseRepresentation
bin10001110010011…
…00001110100001
3101101202122122221
420321030032201
5301144210032
622450031041
73461156425
oct1071141641
9341678587
10149210017
1177252770
1241b78481
1324bb3468
1415b60b85
15d175597
hex8e4c3a1

149210017 has 8 divisors (see below), whose sum is σ = 168387840. Its totient is φ = 130967760.

The previous prime is 149209981. The next prime is 149210053. The reversal of 149210017 is 710012941.

It is an interprime number because it is at equal distance from previous prime (149209981) and next prime (149210053).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-149210017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 149209973 and 149210000.

It is not an unprimeable number, because it can be changed into a prime (149210417) 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, 233553 + ... + 234190.

It is an arithmetic number, because the mean of its divisors is an integer number (21048480).

Almost surely, 2149210017 is an apocalyptic number.

It is an amenable number.

149210017 is a deficient number, since it is larger than the sum of its proper divisors (19177823).

149210017 is a wasteful number, since it uses less digits than its factorization.

149210017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467783.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 149210017 is about 12215.1552180069. The cubic root of 149210017 is about 530.3948843052.

Adding to 149210017 its reverse (710012941), we get a palindrome (859222958).

The spelling of 149210017 in words is "one hundred forty-nine million, two hundred ten thousand, seventeen".

Divisors: 1 11 29 319 467743 5145173 13564547 149210017