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149498517 = 3719374683
BaseRepresentation
bin10001110100100…
…10101010010101
3101102022022102010
420322102222111
5301232423032
622500134433
73463500510
oct1072225225
9342268363
10149498517
117742a4a3
1242097419
1324c8487c
1415bd7d77
15d1d0ccc
hex8e92a95

149498517 has 16 divisors (see below), whose sum is σ = 239797760. Its totient is φ = 80931312.

The previous prime is 149498497. The next prime is 149498543. The reversal of 149498517 is 715894941.

It is not a de Polignac number, because 149498517 - 214 = 149482133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149498417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186943 + ... + 187740.

It is an arithmetic number, because the mean of its divisors is an integer number (14987360).

Almost surely, 2149498517 is an apocalyptic number.

It is an amenable number.

149498517 is a deficient number, since it is larger than the sum of its proper divisors (90299243).

149498517 is a wasteful number, since it uses less digits than its factorization.

149498517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374712.

The product of its digits is 362880, while the sum is 48.

The square root of 149498517 is about 12226.9586161073. The cubic root of 149498517 is about 530.7365066070.

The spelling of 149498517 in words is "one hundred forty-nine million, four hundred ninety-eight thousand, five hundred seventeen".

Divisors: 1 3 7 19 21 57 133 399 374683 1124049 2622781 7118977 7868343 21356931 49832839 149498517