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149384650 = 25219157247
BaseRepresentation
bin10001110011101…
…10110111001010
3101102002112012211
420321312313022
5301220302100
622453455334
73462514522
oct1071666712
9342075184
10149384650
1177361998
124204154a
1324c44aac
1415ba8682
15d1ac1ba
hex8e76dca

149384650 has 24 divisors (see below), whose sum is σ = 292481280. Its totient is φ = 56608560.

The previous prime is 149384633. The next prime is 149384657. The reversal of 149384650 is 56483941.

It is not an unprimeable number, because it can be changed into a prime (149384657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77674 + ... + 79573.

It is an arithmetic number, because the mean of its divisors is an integer number (12186720).

Almost surely, 2149384650 is an apocalyptic number.

149384650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149384650 is a deficient number, since it is larger than the sum of its proper divisors (143096630).

149384650 is a wasteful number, since it uses less digits than its factorization.

149384650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157278 (or 157273 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 149384650 is about 12222.3013381278. The cubic root of 149384650 is about 530.6017255075.

The spelling of 149384650 in words is "one hundred forty-nine million, three hundred eighty-four thousand, six hundred fifty".

Divisors: 1 2 5 10 19 25 38 50 95 190 475 950 157247 314494 786235 1572470 2987693 3931175 5975386 7862350 14938465 29876930 74692325 149384650