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149242534 = 2723779521
BaseRepresentation
bin10001110010101…
…00001010100110
3101101211022021021
420321110022212
5301201230114
622450441354
73461353300
oct1071241246
9341738237
10149242534
1177275141
1241b9325a
1324bc51bc
1415b6c970
15d180024
hex8e542a6

149242534 has 48 divisors (see below), whose sum is σ = 271356480. Its totient is φ = 61326720.

The previous prime is 149242529. The next prime is 149242537. The reversal of 149242534 is 435242941.

It is a self number, because there is not a number n which added to its sum of digits gives 149242534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149242537) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 286194 + ... + 286714.

It is an arithmetic number, because the mean of its divisors is an integer number (5653260).

Almost surely, 2149242534 is an apocalyptic number.

149242534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

149242534 is a deficient number, since it is larger than the sum of its proper divisors (122113946).

149242534 is a wasteful number, since it uses less digits than its factorization.

149242534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653 (or 646 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 149242534 is about 12216.4861560107. The cubic root of 149242534 is about 530.4334107574.

The spelling of 149242534 in words is "one hundred forty-nine million, two hundred forty-two thousand, five hundred thirty-four".

Divisors: 1 2 7 14 37 49 74 79 98 158 259 518 521 553 1042 1106 1813 2923 3626 3647 3871 5846 7294 7742 19277 20461 25529 38554 40922 41159 51058 82318 134939 143227 269878 286454 288113 576226 944573 1522883 1889146 2016791 3045766 4033582 10660181 21320362 74621267 149242534