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149139050 = 2524371977
BaseRepresentation
bin10001110001110…
…10111001101010
3101101122001022112
420320322321222
5301134422200
622444322322
73460442504
oct1070727152
9341561275
10149139050
1177204415
1241b433a2
1324b8a078
1415b42d74
15d15e535
hex8e3ae6a

149139050 has 48 divisors (see below), whose sum is σ = 288142272. Its totient is φ = 57388800.

The previous prime is 149139031. The next prime is 149139059. The reversal of 149139050 is 50931941.

It is a junction number, because it is equal to n+sod(n) for n = 149138998 and 149139016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149139059) 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, 152162 + ... + 153138.

It is an arithmetic number, because the mean of its divisors is an integer number (6002964).

Almost surely, 2149139050 is an apocalyptic number.

149139050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149139050 is a deficient number, since it is larger than the sum of its proper divisors (139003222).

149139050 is a wasteful number, since it uses less digits than its factorization.

149139050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103 (or 1098 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 149139050 is about 12212.2499974411. The cubic root of 149139050 is about 530.3107824833.

The spelling of 149139050 in words is "one hundred forty-nine million, one hundred thirty-nine thousand, fifty".

Divisors: 1 2 5 10 25 43 50 71 86 142 215 355 430 710 977 1075 1775 1954 2150 3053 3550 4885 6106 9770 15265 24425 30530 42011 48850 69367 76325 84022 138734 152650 210055 346835 420110 693670 1050275 1734175 2100550 2982781 3468350 5965562 14913905 29827810 74569525 149139050