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149907111 = 3414725931
BaseRepresentation
bin10001110111101…
…10011010100111
3101110002001220020
420323312122213
5301334011421
622513010223
73500121654
oct1073663247
9343061806
10149907111
1177689482
1242253973
1325098843
1415ca2c2b
15d261dc6
hex8ef66a7

149907111 has 16 divisors (see below), whose sum is σ = 209115648. Its totient is φ = 95422400.

The previous prime is 149907101. The next prime is 149907143. The reversal of 149907111 is 111709941.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-149907111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149907101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7185 + ... + 18746.

It is an arithmetic number, because the mean of its divisors is an integer number (13069728).

Almost surely, 2149907111 is an apocalyptic number.

149907111 is a deficient number, since it is larger than the sum of its proper divisors (59208537).

149907111 is a wasteful number, since it uses less digits than its factorization.

149907111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26022.

The product of its (nonzero) digits is 2268, while the sum is 33.

The square root of 149907111 is about 12243.6559491028. The cubic root of 149907111 is about 531.2195849531.

The spelling of 149907111 in words is "one hundred forty-nine million, nine hundred seven thousand, one hundred eleven".

Divisors: 1 3 41 47 123 141 1927 5781 25931 77793 1063171 1218757 3189513 3656271 49969037 149907111